vroom/public/js/simplewebrtc.bundle.js

(function(e){if("function"==typeof bootstrap)bootstrap("simplewebrtc",e);else if("object"==typeof exports)module.exports=e();else if("function"==typeof define&&define.amd)define(e);else if("undefined"!=typeof ses){if(!ses.ok())return;ses.makeSimpleWebRTC=e}else"undefined"!=typeof window?window.SimpleWebRTC=e():global.SimpleWebRTC=e()})(function(){var define,ses,bootstrap,module,exports;
return (function(e,t,n){function i(n,s){if(!t[n]){if(!e[n]){var o=typeof require=="function"&&require;if(!s&&o)return o(n,!0);if(r)return r(n,!0);throw new Error("Cannot find module '"+n+"'")}var u=t[n]={exports:{}};e[n][0].call(u.exports,function(t){var r=e[n][1][t];return i(r?r:t)},u,u.exports)}return t[n].exports}var r=typeof require=="function"&&require;for(var s=0;s<n.length;s++)i(n[s]);return i})({1:[function(require,module,exports){
var WebRTC = require('./webrtc');
var WildEmitter = require('wildemitter');
var webrtcSupport = require('webrtcsupport');
var attachMediaStream = require('attachmediastream');
var mockconsole = require('mockconsole');
var SocketIoConnection = require('./socketioconnection');

function SimpleWebRTC(opts) {
    var self = this;
    var options = opts || {};
    var config = this.config = {
            url: 'https://signaling.simplewebrtc.com:443/',
            socketio: {/* 'force new connection':true*/},
            connection: null,
            debug: false,
            localVideoEl: '',
            remoteVideosEl: '',
            enableDataChannels: true,
            autoRequestMedia: false,
            autoRemoveVideos: true,
            adjustPeerVolume: true,
            peerVolumeWhenSpeaking: 0.25,
            media: {
                video: true,
                audio: true
            },
            receiveMedia: { // FIXME: remove old chrome <= 37 constraints format
                mandatory: {
                    OfferToReceiveAudio: true,
                    OfferToReceiveVideo: true
                }
            },
            localVideo: {
                autoplay: true,
                mirror: true,
                muted: true
            }
        };
    var item, connection;

    // We also allow a 'logger' option. It can be any object that implements
    // log, warn, and error methods.
    // We log nothing by default, following "the rule of silence":
    // http://www.linfo.org/rule_of_silence.html
    this.logger = function () {
        // we assume that if you're in debug mode and you didn't
        // pass in a logger, you actually want to log as much as
        // possible.
        if (opts.debug) {
            return opts.logger || console;
        } else {
        // or we'll use your logger which should have its own logic
        // for output. Or we'll return the no-op.
            return opts.logger || mockconsole;
        }
    }();

    // set our config from options
    for (item in options) {
        this.config[item] = options[item];
    }

    // attach detected support for convenience
    this.capabilities = webrtcSupport;

    // call WildEmitter constructor
    WildEmitter.call(this);

    // create default SocketIoConnection if it's not passed in
    if (this.config.connection === null) {
        connection = this.connection = new SocketIoConnection(this.config);
    } else {
        connection = this.connection = this.config.connection;
    }

    connection.on('connect', function () {
        self.emit('connectionReady', connection.getSessionid());
        self.sessionReady = true;
        self.testReadiness();
    });

    connection.on('message', function (message) {
        var peers = self.webrtc.getPeers(message.from, message.roomType);
        var peer;

        if (message.type === 'offer') {
            if (peers.length) {
                peers.forEach(function (p) {
                    if (p.sid == message.sid) peer = p;
                });
                //if (!peer) peer = peers[0]; // fallback for old protocol versions
            }
            if (!peer) {
                peer = self.webrtc.createPeer({
                    id: message.from,
                    sid: message.sid,
                    type: message.roomType,
                    enableDataChannels: self.config.enableDataChannels && message.roomType !== 'screen',
                    sharemyscreen: message.roomType === 'screen' && !message.broadcaster,
                    broadcaster: message.roomType === 'screen' && !message.broadcaster ? self.connection.getSessionid() : null
                });
                self.emit('createdPeer', peer);
            }
            peer.handleMessage(message);
        } else if (peers.length) {
            peers.forEach(function (peer) {
                if (message.sid) {
                    if (peer.sid === message.sid) {
                        peer.handleMessage(message);
                    }
                } else {
                    peer.handleMessage(message);
                }
            });
        }
    });

    connection.on('remove', function (room) {
        if (room.id !== self.connection.getSessionid()) {
            self.webrtc.removePeers(room.id, room.type);
        }
    });

    // instantiate our main WebRTC helper
    // using same logger from logic here
    opts.logger = this.logger;
    opts.debug = false;
    this.webrtc = new WebRTC(opts);

    // attach a few methods from underlying lib to simple.
    ['mute', 'unmute', 'pauseVideo', 'resumeVideo', 'pause', 'resume', 'sendToAll', 'sendDirectlyToAll', 'getPeers'].forEach(function (method) {
        self[method] = self.webrtc[method].bind(self.webrtc);
    });

    // proxy events from WebRTC
    this.webrtc.on('*', function () {
        self.emit.apply(self, arguments);
    });

    // log all events in debug mode
    if (config.debug) {
        this.on('*', this.logger.log.bind(this.logger, 'SimpleWebRTC event:'));
    }

    // check for readiness
    this.webrtc.on('localStream', function () {
        self.testReadiness();
    });

    this.webrtc.on('message', function (payload) {
        self.connection.emit('message', payload);
    });

    this.webrtc.on('peerStreamAdded', this.handlePeerStreamAdded.bind(this));
    this.webrtc.on('peerStreamRemoved', this.handlePeerStreamRemoved.bind(this));

    // echo cancellation attempts
    if (this.config.adjustPeerVolume) {
        this.webrtc.on('speaking', this.setVolumeForAll.bind(this, this.config.peerVolumeWhenSpeaking));
        this.webrtc.on('stoppedSpeaking', this.setVolumeForAll.bind(this, 1));
    }

    connection.on('stunservers', function (args) {
        // resets/overrides the config
        self.webrtc.config.peerConnectionConfig.iceServers = args;
        self.emit('stunservers', args);
    });
    connection.on('turnservers', function (args) {
        // appends to the config
        self.webrtc.config.peerConnectionConfig.iceServers = self.webrtc.config.peerConnectionConfig.iceServers.concat(args);
        self.emit('turnservers', args);
    });

    this.webrtc.on('iceFailed', function (peer) {
        // local ice failure
    });
    this.webrtc.on('connectivityError', function (peer) {
        // remote ice failure
    });


    // sending mute/unmute to all peers
    this.webrtc.on('audioOn', function () {
        self.webrtc.sendToAll('unmute', {name: 'audio'});
    });
    this.webrtc.on('audioOff', function () {
        self.webrtc.sendToAll('mute', {name: 'audio'});
    });
    this.webrtc.on('videoOn', function () {
        self.webrtc.sendToAll('unmute', {name: 'video'});
    });
    this.webrtc.on('videoOff', function () {
        self.webrtc.sendToAll('mute', {name: 'video'});
    });

    // screensharing events
    this.webrtc.on('localScreen', function (stream) {
        var item,
            el = document.createElement('video'),
            container = self.getRemoteVideoContainer();

        el.oncontextmenu = function () { return false; };
        el.id = 'localScreen';
        attachMediaStream(stream, el);
        if (container) {
            container.appendChild(el);
        }

        self.emit('localScreenAdded', el);
        self.connection.emit('shareScreen');

        self.webrtc.peers.forEach(function (existingPeer) {
            var peer;
            if (existingPeer.type === 'video') {
                peer = self.webrtc.createPeer({
                    id: existingPeer.id,
                    type: 'screen',
                    sharemyscreen: true,
                    enableDataChannels: false,
                    receiveMedia: {
                        mandatory: {
                            OfferToReceiveAudio: false,
                            OfferToReceiveVideo: false
                        }
                    },
                    broadcaster: self.connection.getSessionid(),
                });
                self.emit('createdPeer', peer);
                peer.start();
            }
        });
    });
    this.webrtc.on('localScreenStopped', function (stream) {
        self.stopScreenShare();
        /*
        self.connection.emit('unshareScreen');
        self.webrtc.peers.forEach(function (peer) {
            if (peer.sharemyscreen) {
                peer.end();
            }
        });
        */
    });

    this.webrtc.on('channelMessage', function (peer, label, data) {
        if (data.type == 'volume') {
            self.emit('remoteVolumeChange', peer, data.volume);
        }
    });

    if (this.config.autoRequestMedia) this.startLocalVideo();
}


SimpleWebRTC.prototype = Object.create(WildEmitter.prototype, {
    constructor: {
        value: SimpleWebRTC
    }
});

SimpleWebRTC.prototype.leaveRoom = function () {
    if (this.roomName) {
        this.connection.emit('leave');
        this.webrtc.peers.forEach(function (peer) {
            peer.end();
        });
        if (this.getLocalScreen()) {
            this.stopScreenShare();
        }
        this.emit('leftRoom', this.roomName);
        this.roomName = undefined;
    }
};

SimpleWebRTC.prototype.disconnect = function () {
    this.connection.disconnect();
    delete this.connection;
};

SimpleWebRTC.prototype.handlePeerStreamAdded = function (peer) {
    var self = this;
    var container = this.getRemoteVideoContainer();
    var video = attachMediaStream(peer.stream);

    // store video element as part of peer for easy removal
    peer.videoEl = video;
    video.id = this.getDomId(peer);

    if (container) container.appendChild(video);

    this.emit('videoAdded', video, peer);

    // send our mute status to new peer if we're muted
    // currently called with a small delay because it arrives before
    // the video element is created otherwise (which happens after
    // the async setRemoteDescription-createAnswer)
    window.setTimeout(function () {
        if (!self.webrtc.isAudioEnabled()) {
            peer.send('mute', {name: 'audio'});
        }
        if (!self.webrtc.isVideoEnabled()) {
            peer.send('mute', {name: 'video'});
        }
    }, 250);
};

SimpleWebRTC.prototype.handlePeerStreamRemoved = function (peer) {
    var container = this.getRemoteVideoContainer();
    var videoEl = peer.videoEl;
    if (this.config.autoRemoveVideos && container && videoEl) {
        container.removeChild(videoEl);
    }
    if (videoEl) this.emit('videoRemoved', videoEl, peer);
};

SimpleWebRTC.prototype.getDomId = function (peer) {
    return [peer.id, peer.type, peer.broadcaster ? 'broadcasting' : 'incoming'].join('_');
};

// set volume on video tag for all peers takse a value between 0 and 1
SimpleWebRTC.prototype.setVolumeForAll = function (volume) {
    this.webrtc.peers.forEach(function (peer) {
        if (peer.videoEl) peer.videoEl.volume = volume;
    });
};

SimpleWebRTC.prototype.joinRoom = function (name, cb) {
    var self = this;
    this.roomName = name;
    this.connection.emit('join', name, function (err, roomDescription) {
        if (err) {
            self.emit('error', err);
        } else {
            var id,
                client,
                type,
                peer;
            for (id in roomDescription.clients) {
                client = roomDescription.clients[id];
                for (type in client) {
                    if (client[type]) {
                        peer = self.webrtc.createPeer({
                            id: id,
                            type: type,
                            enableDataChannels: self.config.enableDataChannels && type !== 'screen',
                            receiveMedia: {
                                mandatory: {
                                    OfferToReceiveAudio: type !== 'screen' && self.config.receiveMedia.mandatory.OfferToReceiveAudio,
                                    OfferToReceiveVideo: self.config.receiveMedia.mandatory.OfferToReceiveVideo
                                }
                            }
                        });
                        self.emit('createdPeer', peer);
                        peer.start();
                    }
                }
            }
        }

        if (cb) cb(err, roomDescription);
        self.emit('joinedRoom', name);
    });
};

SimpleWebRTC.prototype.getEl = function (idOrEl) {
    if (typeof idOrEl === 'string') {
        return document.getElementById(idOrEl);
    } else {
        return idOrEl;
    }
};

SimpleWebRTC.prototype.startLocalVideo = function () {
    var self = this;
    this.webrtc.startLocalMedia(this.config.media, function (err, stream) {
        if (err) {
            self.emit('localMediaError', err);
        } else {
            attachMediaStream(stream, self.getLocalVideoContainer(), self.config.localVideo);
        }
    });
};

SimpleWebRTC.prototype.stopLocalVideo = function () {
    this.webrtc.stopLocalMedia();
};

// this accepts either element ID or element
// and either the video tag itself or a container
// that will be used to put the video tag into.
SimpleWebRTC.prototype.getLocalVideoContainer = function () {
    var el = this.getEl(this.config.localVideoEl);
    if (el && el.tagName === 'VIDEO') {
        el.oncontextmenu = function () { return false; };
        return el;
    } else if (el) {
        var video = document.createElement('video');
        video.oncontextmenu = function () { return false; };
        el.appendChild(video);
        return video;
    } else {
        return;
    }
};

SimpleWebRTC.prototype.getRemoteVideoContainer = function () {
    return this.getEl(this.config.remoteVideosEl);
};

SimpleWebRTC.prototype.shareScreen = function (cb) {
    this.webrtc.startScreenShare(cb);
};

SimpleWebRTC.prototype.getLocalScreen = function () {
    return this.webrtc.localScreen;
};

SimpleWebRTC.prototype.stopScreenShare = function () {
    this.connection.emit('unshareScreen');
    var videoEl = document.getElementById('localScreen');
    var container = this.getRemoteVideoContainer();
    var stream = this.getLocalScreen();

    if (this.config.autoRemoveVideos && container && videoEl) {
        container.removeChild(videoEl);
    }

    // a hack to emit the event the removes the video
    // element that we want
    if (videoEl) this.emit('videoRemoved', videoEl);
    if (stream) {
        stream.getTracks().forEach(function (track) { track.stop(); });
    }
    this.webrtc.peers.forEach(function (peer) {
        if (peer.broadcaster) {
            peer.end();
        }
    });
    //delete this.webrtc.localScreen;
};

SimpleWebRTC.prototype.testReadiness = function () {
    var self = this;
    if (this.webrtc.localStream && this.sessionReady) {
        self.emit('readyToCall', self.connection.getSessionid());
    }
};

SimpleWebRTC.prototype.createRoom = function (name, cb) {
    if (arguments.length === 2) {
        this.connection.emit('create', name, cb);
    } else {
        this.connection.emit('create', name);
    }
};

SimpleWebRTC.prototype.sendFile = function () {
    if (!webrtcSupport.dataChannel) {
        return this.emit('error', new Error('DataChannelNotSupported'));
    }

};

module.exports = SimpleWebRTC;

},{"./socketioconnection":3,"./webrtc":2,"attachmediastream":7,"mockconsole":6,"webrtcsupport":5,"wildemitter":4}],4:[function(require,module,exports){
/*
WildEmitter.js is a slim little event emitter by @henrikjoreteg largely based 
on @visionmedia's Emitter from UI Kit.

Why? I wanted it standalone.

I also wanted support for wildcard emitters like this:

emitter.on('*', function (eventName, other, event, payloads) {
    
});

emitter.on('somenamespace*', function (eventName, payloads) {
    
});

Please note that callbacks triggered by wildcard registered events also get 
the event name as the first argument.
*/
module.exports = WildEmitter;

function WildEmitter() {
    this.isWildEmitter = true;
    this.callbacks = {};
}

// Listen on the given `event` with `fn`. Store a group name if present.
WildEmitter.prototype.on = function (event, groupName, fn) {
    var hasGroup = (arguments.length === 3),
        group = hasGroup ? arguments[1] : undefined,
        func = hasGroup ? arguments[2] : arguments[1];
    func._groupName = group;
    (this.callbacks[event] = this.callbacks[event] || []).push(func);
    return this;
};

// Adds an `event` listener that will be invoked a single
// time then automatically removed.
WildEmitter.prototype.once = function (event, groupName, fn) {
    var self = this,
        hasGroup = (arguments.length === 3),
        group = hasGroup ? arguments[1] : undefined,
        func = hasGroup ? arguments[2] : arguments[1];
    function on() {
        self.off(event, on);
        func.apply(this, arguments);
    }
    this.on(event, group, on);
    return this;
};

// Unbinds an entire group
WildEmitter.prototype.releaseGroup = function (groupName) {
    var item, i, len, handlers;
    for (item in this.callbacks) {
        handlers = this.callbacks[item];
        for (i = 0, len = handlers.length; i < len; i++) {
            if (handlers[i]._groupName === groupName) {
                //console.log('removing');
                // remove it and shorten the array we're looping through
                handlers.splice(i, 1);
                i--;
                len--;
            }
        }
    }
    return this;
};

// Remove the given callback for `event` or all
// registered callbacks.
WildEmitter.prototype.off = function (event, fn) {
    var callbacks = this.callbacks[event],
        i;

    if (!callbacks) return this;

    // remove all handlers
    if (arguments.length === 1) {
        delete this.callbacks[event];
        return this;
    }

    // remove specific handler
    i = callbacks.indexOf(fn);
    callbacks.splice(i, 1);
    if (callbacks.length === 0) {
        delete this.callbacks[event];
    }
    return this;
};

/// Emit `event` with the given args.
// also calls any `*` handlers
WildEmitter.prototype.emit = function (event) {
    var args = [].slice.call(arguments, 1),
        callbacks = this.callbacks[event],
        specialCallbacks = this.getWildcardCallbacks(event),
        i,
        len,
        item,
        listeners;

    if (callbacks) {
        listeners = callbacks.slice();
        for (i = 0, len = listeners.length; i < len; ++i) {
            if (listeners[i]) {
                listeners[i].apply(this, args);
            } else {
                break;
            }
        }
    }

    if (specialCallbacks) {
        len = specialCallbacks.length;
        listeners = specialCallbacks.slice();
        for (i = 0, len = listeners.length; i < len; ++i) {
            if (listeners[i]) {
                listeners[i].apply(this, [event].concat(args));
            } else {
                break;
            }
        }
    }

    return this;
};

// Helper for for finding special wildcard event handlers that match the event
WildEmitter.prototype.getWildcardCallbacks = function (eventName) {
    var item,
        split,
        result = [];

    for (item in this.callbacks) {
        split = item.split('*');
        if (item === '*' || (split.length === 2 && eventName.slice(0, split[0].length) === split[0])) {
            result = result.concat(this.callbacks[item]);
        }
    }
    return result;
};

},{}],5:[function(require,module,exports){
// created by @HenrikJoreteg
var prefix;
var version;

if (window.mozRTCPeerConnection || navigator.mozGetUserMedia) {
    prefix = 'moz';
    version = parseInt(navigator.userAgent.match(/Firefox\/([0-9]+)\./)[1], 10);
} else if (window.webkitRTCPeerConnection || navigator.webkitGetUserMedia) {
    prefix = 'webkit';
    version = navigator.userAgent.match(/Chrom(e|ium)/) && parseInt(navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./)[2], 10);
}

var PC = window.mozRTCPeerConnection || window.webkitRTCPeerConnection;
var IceCandidate = window.mozRTCIceCandidate || window.RTCIceCandidate;
var SessionDescription = window.mozRTCSessionDescription || window.RTCSessionDescription;
var MediaStream = window.webkitMediaStream || window.MediaStream;
var screenSharing = window.location.protocol === 'https:' &&
    ((prefix === 'webkit' && version >= 26) ||
     (prefix === 'moz' && version >= 33))
var AudioContext = window.AudioContext || window.webkitAudioContext;
var videoEl = document.createElement('video');
var supportVp8 = videoEl && videoEl.canPlayType && videoEl.canPlayType('video/webm; codecs="vp8", vorbis') === "probably";
var getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia || navigator.msGetUserMedia || navigator.mozGetUserMedia;

// export support flags and constructors.prototype && PC
module.exports = {
    prefix: prefix,
    browserVersion: version,
    support: !!PC && supportVp8 && !!getUserMedia,
    // new support style
    supportRTCPeerConnection: !!PC,
    supportVp8: supportVp8,
    supportGetUserMedia: !!getUserMedia,
    supportDataChannel: !!(PC && PC.prototype && PC.prototype.createDataChannel),
    supportWebAudio: !!(AudioContext && AudioContext.prototype.createMediaStreamSource),
    supportMediaStream: !!(MediaStream && MediaStream.prototype.removeTrack),
    supportScreenSharing: !!screenSharing,
    // old deprecated style. Dont use this anymore
    dataChannel: !!(PC && PC.prototype && PC.prototype.createDataChannel),
    webAudio: !!(AudioContext && AudioContext.prototype.createMediaStreamSource),
    mediaStream: !!(MediaStream && MediaStream.prototype.removeTrack),
    screenSharing: !!screenSharing,
    // constructors
    AudioContext: AudioContext,
    PeerConnection: PC,
    SessionDescription: SessionDescription,
    IceCandidate: IceCandidate,
    MediaStream: MediaStream,
    getUserMedia: getUserMedia
};

},{}],6:[function(require,module,exports){
var methods = "assert,count,debug,dir,dirxml,error,exception,group,groupCollapsed,groupEnd,info,log,markTimeline,profile,profileEnd,time,timeEnd,trace,warn".split(",");
var l = methods.length;
var fn = function () {};
var mockconsole = {};

while (l--) {
    mockconsole[methods[l]] = fn;
}

module.exports = mockconsole;

},{}],7:[function(require,module,exports){
module.exports = function (stream, el, options) {
    var URL = window.URL;
    var opts = {
        autoplay: true,
        mirror: false,
        muted: false
    };
    var element = el || document.createElement('video');
    var item;

    if (options) {
        for (item in options) {
            opts[item] = options[item];
        }
    }

    if (opts.autoplay) element.autoplay = 'autoplay';
    if (opts.muted) element.muted = true;
    if (opts.mirror) {
        ['', 'moz', 'webkit', 'o', 'ms'].forEach(function (prefix) {
            var styleName = prefix ? prefix + 'Transform' : 'transform';
            element.style[styleName] = 'scaleX(-1)';
        });
    }

    // this first one should work most everywhere now
    // but we have a few fallbacks just in case.
    if (URL && URL.createObjectURL) {
        element.src = URL.createObjectURL(stream);
    } else if (element.srcObject) {
        element.srcObject = stream;
    } else if (element.mozSrcObject) {
        element.mozSrcObject = stream;
    } else {
        return false;
    }

    return element;
};

},{}],2:[function(require,module,exports){
var util = require('util');
var webrtc = require('webrtcsupport');
var WildEmitter = require('wildemitter');
var mockconsole = require('mockconsole');
var localMedia = require('localmedia');
var Peer = require('./peer');


function WebRTC(opts) {
    var self = this;
    var options = opts || {};
    var config = this.config = {
            debug: false,
            // makes the entire PC config overridable
            peerConnectionConfig: {
                iceServers: [{"url": "stun:stun.l.google.com:19302"}]
            },
            peerConnectionConstraints: {
                optional: [
                    {DtlsSrtpKeyAgreement: true}
                ]
            },
            receiveMedia: {
                mandatory: {
                    OfferToReceiveAudio: true,
                    OfferToReceiveVideo: true
                }
            },
            enableDataChannels: true
        };
    var item;

    // expose screensharing check
    this.screenSharingSupport = webrtc.screenSharing;

    // We also allow a 'logger' option. It can be any object that implements
    // log, warn, and error methods.
    // We log nothing by default, following "the rule of silence":
    // http://www.linfo.org/rule_of_silence.html
    this.logger = function () {
        // we assume that if you're in debug mode and you didn't
        // pass in a logger, you actually want to log as much as
        // possible.
        if (opts.debug) {
            return opts.logger || console;
        } else {
        // or we'll use your logger which should have its own logic
        // for output. Or we'll return the no-op.
            return opts.logger || mockconsole;
        }
    }();

    // set options
    for (item in options) {
        this.config[item] = options[item];
    }

    // check for support
    if (!webrtc.support) {
        this.logger.error('Your browser doesn\'t seem to support WebRTC');
    }

    // where we'll store our peer connections
    this.peers = [];

    // call localMedia constructor
    localMedia.call(this, this.config);

    this.on('speaking', function () {
        if (!self.hardMuted) {
            // FIXME: should use sendDirectlyToAll, but currently has different semantics wrt payload
            self.peers.forEach(function (peer) {
                if (peer.enableDataChannels) {
                    var dc = peer.getDataChannel('hark');
                    if (dc.readyState != 'open') return;
                    dc.send(JSON.stringify({type: 'speaking'}));
                }
            });
        }
    });
    this.on('stoppedSpeaking', function () {
        if (!self.hardMuted) {
            // FIXME: should use sendDirectlyToAll, but currently has different semantics wrt payload
            self.peers.forEach(function (peer) {
                if (peer.enableDataChannels) {
                    var dc = peer.getDataChannel('hark');
                    if (dc.readyState != 'open') return;
                    dc.send(JSON.stringify({type: 'stoppedSpeaking'}));
                }
            });
        }
    });
    this.on('volumeChange', function (volume, treshold) {
        if (!self.hardMuted) {
            // FIXME: should use sendDirectlyToAll, but currently has different semantics wrt payload
            self.peers.forEach(function (peer) {
                if (peer.enableDataChannels) {
                    var dc = peer.getDataChannel('hark');
                    if (dc.readyState != 'open') return;
                    dc.send(JSON.stringify({type: 'volume', volume: volume }));
                }
            });
        }
    });

    // log events in debug mode
    if (this.config.debug) {
        this.on('*', function (event, val1, val2) {
            var logger;
            // if you didn't pass in a logger and you explicitly turning on debug
            // we're just going to assume you're wanting log output with console
            if (self.config.logger === mockconsole) {
                logger = console;
            } else {
                logger = self.logger;
            }
            logger.log('event:', event, val1, val2);
        });
    }
}

util.inherits(WebRTC, localMedia);

WebRTC.prototype.createPeer = function (opts) {
    var peer;
    opts.parent = this;
    peer = new Peer(opts);
    this.peers.push(peer);
    return peer;
};

// removes peers
WebRTC.prototype.removePeers = function (id, type) {
    this.getPeers(id, type).forEach(function (peer) {
        peer.end();
    });
};

// fetches all Peer objects by session id and/or type
WebRTC.prototype.getPeers = function (sessionId, type) {
    return this.peers.filter(function (peer) {
        return (!sessionId || peer.id === sessionId) && (!type || peer.type === type);
    });
};

// sends message to all
WebRTC.prototype.sendToAll = function (message, payload) {
    this.peers.forEach(function (peer) {
        peer.send(message, payload);
    });
};

// sends message to all using a datachannel
// only sends to anyone who has an open datachannel
WebRTC.prototype.sendDirectlyToAll = function (channel, message, payload) {
    this.peers.forEach(function (peer) {
        if (peer.enableDataChannels) {
            peer.sendDirectly(channel, message, payload);
        }
    });
};

module.exports = WebRTC;

},{"./peer":9,"localmedia":10,"mockconsole":6,"util":8,"webrtcsupport":5,"wildemitter":4}],3:[function(require,module,exports){
var io = require('socket.io-client');

function SocketIoConnection(config) {
    this.connection = io.connect(config.url, config.socketio);
}

SocketIoConnection.prototype.on = function (ev, fn) {
    this.connection.on(ev, fn);
};

SocketIoConnection.prototype.emit = function () {
    this.connection.emit.apply(this.connection, arguments);
};

SocketIoConnection.prototype.getSessionid = function () {
    return this.connection.socket.sessionid;
};

SocketIoConnection.prototype.disconnect = function () {
    return this.connection.disconnect();
};

module.exports = SocketIoConnection;

},{"socket.io-client":11}],8:[function(require,module,exports){
var events = require('events');

exports.isArray = isArray;
exports.isDate = function(obj){return Object.prototype.toString.call(obj) === '[object Date]'};
exports.isRegExp = function(obj){return Object.prototype.toString.call(obj) === '[object RegExp]'};


exports.print = function () {};
exports.puts = function () {};
exports.debug = function() {};

exports.inspect = function(obj, showHidden, depth, colors) {
  var seen = [];

  var stylize = function(str, styleType) {
    // http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
    var styles =
        { 'bold' : [1, 22],
          'italic' : [3, 23],
          'underline' : [4, 24],
          'inverse' : [7, 27],
          'white' : [37, 39],
          'grey' : [90, 39],
          'black' : [30, 39],
          'blue' : [34, 39],
          'cyan' : [36, 39],
          'green' : [32, 39],
          'magenta' : [35, 39],
          'red' : [31, 39],
          'yellow' : [33, 39] };

    var style =
        { 'special': 'cyan',
          'number': 'blue',
          'boolean': 'yellow',
          'undefined': 'grey',
          'null': 'bold',
          'string': 'green',
          'date': 'magenta',
          // "name": intentionally not styling
          'regexp': 'red' }[styleType];

    if (style) {
      return '\u001b[' + styles[style][0] + 'm' + str +
             '\u001b[' + styles[style][1] + 'm';
    } else {
      return str;
    }
  };
  if (! colors) {
    stylize = function(str, styleType) { return str; };
  }

  function format(value, recurseTimes) {
    // Provide a hook for user-specified inspect functions.
    // Check that value is an object with an inspect function on it
    if (value && typeof value.inspect === 'function' &&
        // Filter out the util module, it's inspect function is special
        value !== exports &&
        // Also filter out any prototype objects using the circular check.
        !(value.constructor && value.constructor.prototype === value)) {
      return value.inspect(recurseTimes);
    }

    // Primitive types cannot have properties
    switch (typeof value) {
      case 'undefined':
        return stylize('undefined', 'undefined');

      case 'string':
        var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
                                                 .replace(/'/g, "\\'")
                                                 .replace(/\\"/g, '"') + '\'';
        return stylize(simple, 'string');

      case 'number':
        return stylize('' + value, 'number');

      case 'boolean':
        return stylize('' + value, 'boolean');
    }
    // For some reason typeof null is "object", so special case here.
    if (value === null) {
      return stylize('null', 'null');
    }

    // Look up the keys of the object.
    var visible_keys = Object_keys(value);
    var keys = showHidden ? Object_getOwnPropertyNames(value) : visible_keys;

    // Functions without properties can be shortcutted.
    if (typeof value === 'function' && keys.length === 0) {
      if (isRegExp(value)) {
        return stylize('' + value, 'regexp');
      } else {
        var name = value.name ? ': ' + value.name : '';
        return stylize('[Function' + name + ']', 'special');
      }
    }

    // Dates without properties can be shortcutted
    if (isDate(value) && keys.length === 0) {
      return stylize(value.toUTCString(), 'date');
    }

    var base, type, braces;
    // Determine the object type
    if (isArray(value)) {
      type = 'Array';
      braces = ['[', ']'];
    } else {
      type = 'Object';
      braces = ['{', '}'];
    }

    // Make functions say that they are functions
    if (typeof value === 'function') {
      var n = value.name ? ': ' + value.name : '';
      base = (isRegExp(value)) ? ' ' + value : ' [Function' + n + ']';
    } else {
      base = '';
    }

    // Make dates with properties first say the date
    if (isDate(value)) {
      base = ' ' + value.toUTCString();
    }

    if (keys.length === 0) {
      return braces[0] + base + braces[1];
    }

    if (recurseTimes < 0) {
      if (isRegExp(value)) {
        return stylize('' + value, 'regexp');
      } else {
        return stylize('[Object]', 'special');
      }
    }

    seen.push(value);

    var output = keys.map(function(key) {
      var name, str;
      if (value.__lookupGetter__) {
        if (value.__lookupGetter__(key)) {
          if (value.__lookupSetter__(key)) {
            str = stylize('[Getter/Setter]', 'special');
          } else {
            str = stylize('[Getter]', 'special');
          }
        } else {
          if (value.__lookupSetter__(key)) {
            str = stylize('[Setter]', 'special');
          }
        }
      }
      if (visible_keys.indexOf(key) < 0) {
        name = '[' + key + ']';
      }
      if (!str) {
        if (seen.indexOf(value[key]) < 0) {
          if (recurseTimes === null) {
            str = format(value[key]);
          } else {
            str = format(value[key], recurseTimes - 1);
          }
          if (str.indexOf('\n') > -1) {
            if (isArray(value)) {
              str = str.split('\n').map(function(line) {
                return '  ' + line;
              }).join('\n').substr(2);
            } else {
              str = '\n' + str.split('\n').map(function(line) {
                return '   ' + line;
              }).join('\n');
            }
          }
        } else {
          str = stylize('[Circular]', 'special');
        }
      }
      if (typeof name === 'undefined') {
        if (type === 'Array' && key.match(/^\d+$/)) {
          return str;
        }
        name = JSON.stringify('' + key);
        if (name.match(/^"([a-zA-Z_][a-zA-Z_0-9]*)"$/)) {
          name = name.substr(1, name.length - 2);
          name = stylize(name, 'name');
        } else {
          name = name.replace(/'/g, "\\'")
                     .replace(/\\"/g, '"')
                     .replace(/(^"|"$)/g, "'");
          name = stylize(name, 'string');
        }
      }

      return name + ': ' + str;
    });

    seen.pop();

    var numLinesEst = 0;
    var length = output.reduce(function(prev, cur) {
      numLinesEst++;
      if (cur.indexOf('\n') >= 0) numLinesEst++;
      return prev + cur.length + 1;
    }, 0);

    if (length > 50) {
      output = braces[0] +
               (base === '' ? '' : base + '\n ') +
               ' ' +
               output.join(',\n  ') +
               ' ' +
               braces[1];

    } else {
      output = braces[0] + base + ' ' + output.join(', ') + ' ' + braces[1];
    }

    return output;
  }
  return format(obj, (typeof depth === 'undefined' ? 2 : depth));
};


function isArray(ar) {
  return Array.isArray(ar) ||
         (typeof ar === 'object' && Object.prototype.toString.call(ar) === '[object Array]');
}


function isRegExp(re) {
  typeof re === 'object' && Object.prototype.toString.call(re) === '[object RegExp]';
}


function isDate(d) {
  return typeof d === 'object' && Object.prototype.toString.call(d) === '[object Date]';
}

function pad(n) {
  return n < 10 ? '0' + n.toString(10) : n.toString(10);
}

var months = ['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep',
              'Oct', 'Nov', 'Dec'];

// 26 Feb 16:19:34
function timestamp() {
  var d = new Date();
  var time = [pad(d.getHours()),
              pad(d.getMinutes()),
              pad(d.getSeconds())].join(':');
  return [d.getDate(), months[d.getMonth()], time].join(' ');
}

exports.log = function (msg) {};

exports.pump = null;

var Object_keys = Object.keys || function (obj) {
    var res = [];
    for (var key in obj) res.push(key);
    return res;
};

var Object_getOwnPropertyNames = Object.getOwnPropertyNames || function (obj) {
    var res = [];
    for (var key in obj) {
        if (Object.hasOwnProperty.call(obj, key)) res.push(key);
    }
    return res;
};

var Object_create = Object.create || function (prototype, properties) {
    // from es5-shim
    var object;
    if (prototype === null) {
        object = { '__proto__' : null };
    }
    else {
        if (typeof prototype !== 'object') {
            throw new TypeError(
                'typeof prototype[' + (typeof prototype) + '] != \'object\''
            );
        }
        var Type = function () {};
        Type.prototype = prototype;
        object = new Type();
        object.__proto__ = prototype;
    }
    if (typeof properties !== 'undefined' && Object.defineProperties) {
        Object.defineProperties(object, properties);
    }
    return object;
};

exports.inherits = function(ctor, superCtor) {
  ctor.super_ = superCtor;
  ctor.prototype = Object_create(superCtor.prototype, {
    constructor: {
      value: ctor,
      enumerable: false,
      writable: true,
      configurable: true
    }
  });
};

var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
  if (typeof f !== 'string') {
    var objects = [];
    for (var i = 0; i < arguments.length; i++) {
      objects.push(exports.inspect(arguments[i]));
    }
    return objects.join(' ');
  }

  var i = 1;
  var args = arguments;
  var len = args.length;
  var str = String(f).replace(formatRegExp, function(x) {
    if (x === '%%') return '%';
    if (i >= len) return x;
    switch (x) {
      case '%s': return String(args[i++]);
      case '%d': return Number(args[i++]);
      case '%j': return JSON.stringify(args[i++]);
      default:
        return x;
    }
  });
  for(var x = args[i]; i < len; x = args[++i]){
    if (x === null || typeof x !== 'object') {
      str += ' ' + x;
    } else {
      str += ' ' + exports.inspect(x);
    }
  }
  return str;
};

},{"events":12}],11:[function(require,module,exports){
/*! Socket.IO.js build:0.9.16, development. Copyright(c) 2011 LearnBoost <dev@learnboost.com> MIT Licensed */

var io = ('undefined' === typeof module ? {} : module.exports);
(function() {

/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, global) {

  /**
   * IO namespace.
   *
   * @namespace
   */

  var io = exports;

  /**
   * Socket.IO version
   *
   * @api public
   */

  io.version = '0.9.16';

  /**
   * Protocol implemented.
   *
   * @api public
   */

  io.protocol = 1;

  /**
   * Available transports, these will be populated with the available transports
   *
   * @api public
   */

  io.transports = [];

  /**
   * Keep track of jsonp callbacks.
   *
   * @api private
   */

  io.j = [];

  /**
   * Keep track of our io.Sockets
   *
   * @api private
   */
  io.sockets = {};


  /**
   * Manages connections to hosts.
   *
   * @param {String} uri
   * @Param {Boolean} force creation of new socket (defaults to false)
   * @api public
   */

  io.connect = function (host, details) {
    var uri = io.util.parseUri(host)
      , uuri
      , socket;

    if (global && global.location) {
      uri.protocol = uri.protocol || global.location.protocol.slice(0, -1);
      uri.host = uri.host || (global.document
        ? global.document.domain : global.location.hostname);
      uri.port = uri.port || global.location.port;
    }

    uuri = io.util.uniqueUri(uri);

    var options = {
        host: uri.host
      , secure: 'https' == uri.protocol
      , port: uri.port || ('https' == uri.protocol ? 443 : 80)
      , query: uri.query || ''
    };

    io.util.merge(options, details);

    if (options['force new connection'] || !io.sockets[uuri]) {
      socket = new io.Socket(options);
    }

    if (!options['force new connection'] && socket) {
      io.sockets[uuri] = socket;
    }

    socket = socket || io.sockets[uuri];

    // if path is different from '' or /
    return socket.of(uri.path.length > 1 ? uri.path : '');
  };

})('object' === typeof module ? module.exports : (this.io = {}), this);
/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, global) {

  /**
   * Utilities namespace.
   *
   * @namespace
   */

  var util = exports.util = {};

  /**
   * Parses an URI
   *
   * @author Steven Levithan <stevenlevithan.com> (MIT license)
   * @api public
   */

  var re = /^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*)(?::([^:@]*))?)?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/;

  var parts = ['source', 'protocol', 'authority', 'userInfo', 'user', 'password',
               'host', 'port', 'relative', 'path', 'directory', 'file', 'query',
               'anchor'];

  util.parseUri = function (str) {
    var m = re.exec(str || '')
      , uri = {}
      , i = 14;

    while (i--) {
      uri[parts[i]] = m[i] || '';
    }

    return uri;
  };

  /**
   * Produces a unique url that identifies a Socket.IO connection.
   *
   * @param {Object} uri
   * @api public
   */

  util.uniqueUri = function (uri) {
    var protocol = uri.protocol
      , host = uri.host
      , port = uri.port;

    if ('document' in global) {
      host = host || document.domain;
      port = port || (protocol == 'https'
        && document.location.protocol !== 'https:' ? 443 : document.location.port);
    } else {
      host = host || 'localhost';

      if (!port && protocol == 'https') {
        port = 443;
      }
    }

    return (protocol || 'http') + '://' + host + ':' + (port || 80);
  };

  /**
   * Mergest 2 query strings in to once unique query string
   *
   * @param {String} base
   * @param {String} addition
   * @api public
   */

  util.query = function (base, addition) {
    var query = util.chunkQuery(base || '')
      , components = [];

    util.merge(query, util.chunkQuery(addition || ''));
    for (var part in query) {
      if (query.hasOwnProperty(part)) {
        components.push(part + '=' + query[part]);
      }
    }

    return components.length ? '?' + components.join('&') : '';
  };

  /**
   * Transforms a querystring in to an object
   *
   * @param {String} qs
   * @api public
   */

  util.chunkQuery = function (qs) {
    var query = {}
      , params = qs.split('&')
      , i = 0
      , l = params.length
      , kv;

    for (; i < l; ++i) {
      kv = params[i].split('=');
      if (kv[0]) {
        query[kv[0]] = kv[1];
      }
    }

    return query;
  };

  /**
   * Executes the given function when the page is loaded.
   *
   *     io.util.load(function () { console.log('page loaded'); });
   *
   * @param {Function} fn
   * @api public
   */

  var pageLoaded = false;

  util.load = function (fn) {
    if ('document' in global && document.readyState === 'complete' || pageLoaded) {
      return fn();
    }

    util.on(global, 'load', fn, false);
  };

  /**
   * Adds an event.
   *
   * @api private
   */

  util.on = function (element, event, fn, capture) {
    if (element.attachEvent) {
      element.attachEvent('on' + event, fn);
    } else if (element.addEventListener) {
      element.addEventListener(event, fn, capture);
    }
  };

  /**
   * Generates the correct `XMLHttpRequest` for regular and cross domain requests.
   *
   * @param {Boolean} [xdomain] Create a request that can be used cross domain.
   * @returns {XMLHttpRequest|false} If we can create a XMLHttpRequest.
   * @api private
   */

  util.request = function (xdomain) {

    if (xdomain && 'undefined' != typeof XDomainRequest && !util.ua.hasCORS) {
      return new XDomainRequest();
    }

    if ('undefined' != typeof XMLHttpRequest && (!xdomain || util.ua.hasCORS)) {
      return new XMLHttpRequest();
    }

    if (!xdomain) {
      try {
        return new window[(['Active'].concat('Object').join('X'))]('Microsoft.XMLHTTP');
      } catch(e) { }
    }

    return null;
  };

  /**
   * XHR based transport constructor.
   *
   * @constructor
   * @api public
   */

  /**
   * Change the internal pageLoaded value.
   */

  if ('undefined' != typeof window) {
    util.load(function () {
      pageLoaded = true;
    });
  }

  /**
   * Defers a function to ensure a spinner is not displayed by the browser
   *
   * @param {Function} fn
   * @api public
   */

  util.defer = function (fn) {
    if (!util.ua.webkit || 'undefined' != typeof importScripts) {
      return fn();
    }

    util.load(function () {
      setTimeout(fn, 100);
    });
  };

  /**
   * Merges two objects.
   *
   * @api public
   */

  util.merge = function merge (target, additional, deep, lastseen) {
    var seen = lastseen || []
      , depth = typeof deep == 'undefined' ? 2 : deep
      , prop;

    for (prop in additional) {
      if (additional.hasOwnProperty(prop) && util.indexOf(seen, prop) < 0) {
        if (typeof target[prop] !== 'object' || !depth) {
          target[prop] = additional[prop];
          seen.push(additional[prop]);
        } else {
          util.merge(target[prop], additional[prop], depth - 1, seen);
        }
      }
    }

    return target;
  };

  /**
   * Merges prototypes from objects
   *
   * @api public
   */

  util.mixin = function (ctor, ctor2) {
    util.merge(ctor.prototype, ctor2.prototype);
  };

  /**
   * Shortcut for prototypical and static inheritance.
   *
   * @api private
   */

  util.inherit = function (ctor, ctor2) {
    function f() {};
    f.prototype = ctor2.prototype;
    ctor.prototype = new f;
  };

  /**
   * Checks if the given object is an Array.
   *
   *     io.util.isArray([]); // true
   *     io.util.isArray({}); // false
   *
   * @param Object obj
   * @api public
   */

  util.isArray = Array.isArray || function (obj) {
    return Object.prototype.toString.call(obj) === '[object Array]';
  };

  /**
   * Intersects values of two arrays into a third
   *
   * @api public
   */

  util.intersect = function (arr, arr2) {
    var ret = []
      , longest = arr.length > arr2.length ? arr : arr2
      , shortest = arr.length > arr2.length ? arr2 : arr;

    for (var i = 0, l = shortest.length; i < l; i++) {
      if (~util.indexOf(longest, shortest[i]))
        ret.push(shortest[i]);
    }

    return ret;
  };

  /**
   * Array indexOf compatibility.
   *
   * @see bit.ly/a5Dxa2
   * @api public
   */

  util.indexOf = function (arr, o, i) {

    for (var j = arr.length, i = i < 0 ? i + j < 0 ? 0 : i + j : i || 0;
         i < j && arr[i] !== o; i++) {}

    return j <= i ? -1 : i;
  };

  /**
   * Converts enumerables to array.
   *
   * @api public
   */

  util.toArray = function (enu) {
    var arr = [];

    for (var i = 0, l = enu.length; i < l; i++)
      arr.push(enu[i]);

    return arr;
  };

  /**
   * UA / engines detection namespace.
   *
   * @namespace
   */

  util.ua = {};

  /**
   * Whether the UA supports CORS for XHR.
   *
   * @api public
   */

  util.ua.hasCORS = 'undefined' != typeof XMLHttpRequest && (function () {
    try {
      var a = new XMLHttpRequest();
    } catch (e) {
      return false;
    }

    return a.withCredentials != undefined;
  })();

  /**
   * Detect webkit.
   *
   * @api public
   */

  util.ua.webkit = 'undefined' != typeof navigator
    && /webkit/i.test(navigator.userAgent);

   /**
   * Detect iPad/iPhone/iPod.
   *
   * @api public
   */

  util.ua.iDevice = 'undefined' != typeof navigator
      && /iPad|iPhone|iPod/i.test(navigator.userAgent);

})('undefined' != typeof io ? io : module.exports, this);
/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, io) {

  /**
   * Expose constructor.
   */

  exports.EventEmitter = EventEmitter;

  /**
   * Event emitter constructor.
   *
   * @api public.
   */

  function EventEmitter () {};

  /**
   * Adds a listener
   *
   * @api public
   */

  EventEmitter.prototype.on = function (name, fn) {
    if (!this.$events) {
      this.$events = {};
    }

    if (!this.$events[name]) {
      this.$events[name] = fn;
    } else if (io.util.isArray(this.$events[name])) {
      this.$events[name].push(fn);
    } else {
      this.$events[name] = [this.$events[name], fn];
    }

    return this;
  };

  EventEmitter.prototype.addListener = EventEmitter.prototype.on;

  /**
   * Adds a volatile listener.
   *
   * @api public
   */

  EventEmitter.prototype.once = function (name, fn) {
    var self = this;

    function on () {
      self.removeListener(name, on);
      fn.apply(this, arguments);
    };

    on.listener = fn;
    this.on(name, on);

    return this;
  };

  /**
   * Removes a listener.
   *
   * @api public
   */

  EventEmitter.prototype.removeListener = function (name, fn) {
    if (this.$events && this.$events[name]) {
      var list = this.$events[name];

      if (io.util.isArray(list)) {
        var pos = -1;

        for (var i = 0, l = list.length; i < l; i++) {
          if (list[i] === fn || (list[i].listener && list[i].listener === fn)) {
            pos = i;
            break;
          }
        }

        if (pos < 0) {
          return this;
        }

        list.splice(pos, 1);

        if (!list.length) {
          delete this.$events[name];
        }
      } else if (list === fn || (list.listener && list.listener === fn)) {
        delete this.$events[name];
      }
    }

    return this;
  };

  /**
   * Removes all listeners for an event.
   *
   * @api public
   */

  EventEmitter.prototype.removeAllListeners = function (name) {
    if (name === undefined) {
      this.$events = {};
      return this;
    }

    if (this.$events && this.$events[name]) {
      this.$events[name] = null;
    }

    return this;
  };

  /**
   * Gets all listeners for a certain event.
   *
   * @api publci
   */

  EventEmitter.prototype.listeners = function (name) {
    if (!this.$events) {
      this.$events = {};
    }

    if (!this.$events[name]) {
      this.$events[name] = [];
    }

    if (!io.util.isArray(this.$events[name])) {
      this.$events[name] = [this.$events[name]];
    }

    return this.$events[name];
  };

  /**
   * Emits an event.
   *
   * @api public
   */

  EventEmitter.prototype.emit = function (name) {
    if (!this.$events) {
      return false;
    }

    var handler = this.$events[name];

    if (!handler) {
      return false;
    }

    var args = Array.prototype.slice.call(arguments, 1);

    if ('function' == typeof handler) {
      handler.apply(this, args);
    } else if (io.util.isArray(handler)) {
      var listeners = handler.slice();

      for (var i = 0, l = listeners.length; i < l; i++) {
        listeners[i].apply(this, args);
      }
    } else {
      return false;
    }

    return true;
  };

})(
    'undefined' != typeof io ? io : module.exports
  , 'undefined' != typeof io ? io : module.parent.exports
);

/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

/**
 * Based on JSON2 (http://www.JSON.org/js.html).
 */

(function (exports, nativeJSON) {
  "use strict";

  // use native JSON if it's available
  if (nativeJSON && nativeJSON.parse){
    return exports.JSON = {
      parse: nativeJSON.parse
    , stringify: nativeJSON.stringify
    };
  }

  var JSON = exports.JSON = {};

  function f(n) {
      // Format integers to have at least two digits.
      return n < 10 ? '0' + n : n;
  }

  function date(d, key) {
    return isFinite(d.valueOf()) ?
        d.getUTCFullYear()     + '-' +
        f(d.getUTCMonth() + 1) + '-' +
        f(d.getUTCDate())      + 'T' +
        f(d.getUTCHours())     + ':' +
        f(d.getUTCMinutes())   + ':' +
        f(d.getUTCSeconds())   + 'Z' : null;
  };

  var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
      escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
      gap,
      indent,
      meta = {    // table of character substitutions
          '\b': '\\b',
          '\t': '\\t',
          '\n': '\\n',
          '\f': '\\f',
          '\r': '\\r',
          '"' : '\\"',
          '\\': '\\\\'
      },
      rep;


  function quote(string) {

// If the string contains no control characters, no quote characters, and no
// backslash characters, then we can safely slap some quotes around it.
// Otherwise we must also replace the offending characters with safe escape
// sequences.

      escapable.lastIndex = 0;
      return escapable.test(string) ? '"' + string.replace(escapable, function (a) {
          var c = meta[a];
          return typeof c === 'string' ? c :
              '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
      }) + '"' : '"' + string + '"';
  }


  function str(key, holder) {

// Produce a string from holder[key].

      var i,          // The loop counter.
          k,          // The member key.
          v,          // The member value.
          length,
          mind = gap,
          partial,
          value = holder[key];

// If the value has a toJSON method, call it to obtain a replacement value.

      if (value instanceof Date) {
          value = date(key);
      }

// If we were called with a replacer function, then call the replacer to
// obtain a replacement value.

      if (typeof rep === 'function') {
          value = rep.call(holder, key, value);
      }

// What happens next depends on the value's type.

      switch (typeof value) {
      case 'string':
          return quote(value);

      case 'number':

// JSON numbers must be finite. Encode non-finite numbers as null.

          return isFinite(value) ? String(value) : 'null';

      case 'boolean':
      case 'null':

// If the value is a boolean or null, convert it to a string. Note:
// typeof null does not produce 'null'. The case is included here in
// the remote chance that this gets fixed someday.

          return String(value);

// If the type is 'object', we might be dealing with an object or an array or
// null.

      case 'object':

// Due to a specification blunder in ECMAScript, typeof null is 'object',
// so watch out for that case.

          if (!value) {
              return 'null';
          }

// Make an array to hold the partial results of stringifying this object value.

          gap += indent;
          partial = [];

// Is the value an array?

          if (Object.prototype.toString.apply(value) === '[object Array]') {

// The value is an array. Stringify every element. Use null as a placeholder
// for non-JSON values.

              length = value.length;
              for (i = 0; i < length; i += 1) {
                  partial[i] = str(i, value) || 'null';
              }

// Join all of the elements together, separated with commas, and wrap them in
// brackets.

              v = partial.length === 0 ? '[]' : gap ?
                  '[\n' + gap + partial.join(',\n' + gap) + '\n' + mind + ']' :
                  '[' + partial.join(',') + ']';
              gap = mind;
              return v;
          }

// If the replacer is an array, use it to select the members to be stringified.

          if (rep && typeof rep === 'object') {
              length = rep.length;
              for (i = 0; i < length; i += 1) {
                  if (typeof rep[i] === 'string') {
                      k = rep[i];
                      v = str(k, value);
                      if (v) {
                          partial.push(quote(k) + (gap ? ': ' : ':') + v);
                      }
                  }
              }
          } else {

// Otherwise, iterate through all of the keys in the object.

              for (k in value) {
                  if (Object.prototype.hasOwnProperty.call(value, k)) {
                      v = str(k, value);
                      if (v) {
                          partial.push(quote(k) + (gap ? ': ' : ':') + v);
                      }
                  }
              }
          }

// Join all of the member texts together, separated with commas,
// and wrap them in braces.

          v = partial.length === 0 ? '{}' : gap ?
              '{\n' + gap + partial.join(',\n' + gap) + '\n' + mind + '}' :
              '{' + partial.join(',') + '}';
          gap = mind;
          return v;
      }
  }

// If the JSON object does not yet have a stringify method, give it one.

  JSON.stringify = function (value, replacer, space) {

// The stringify method takes a value and an optional replacer, and an optional
// space parameter, and returns a JSON text. The replacer can be a function
// that can replace values, or an array of strings that will select the keys.
// A default replacer method can be provided. Use of the space parameter can
// produce text that is more easily readable.

      var i;
      gap = '';
      indent = '';

// If the space parameter is a number, make an indent string containing that
// many spaces.

      if (typeof space === 'number') {
          for (i = 0; i < space; i += 1) {
              indent += ' ';
          }

// If the space parameter is a string, it will be used as the indent string.

      } else if (typeof space === 'string') {
          indent = space;
      }

// If there is a replacer, it must be a function or an array.
// Otherwise, throw an error.

      rep = replacer;
      if (replacer && typeof replacer !== 'function' &&
              (typeof replacer !== 'object' ||
              typeof replacer.length !== 'number')) {
          throw new Error('JSON.stringify');
      }

// Make a fake root object containing our value under the key of ''.
// Return the result of stringifying the value.

      return str('', {'': value});
  };

// If the JSON object does not yet have a parse method, give it one.

  JSON.parse = function (text, reviver) {
  // The parse method takes a text and an optional reviver function, and returns
  // a JavaScript value if the text is a valid JSON text.

      var j;

      function walk(holder, key) {

  // The walk method is used to recursively walk the resulting structure so
  // that modifications can be made.

          var k, v, value = holder[key];
          if (value && typeof value === 'object') {
              for (k in value) {
                  if (Object.prototype.hasOwnProperty.call(value, k)) {
                      v = walk(value, k);
                      if (v !== undefined) {
                          value[k] = v;
                      } else {
                          delete value[k];
                      }
                  }
              }
          }
          return reviver.call(holder, key, value);
      }


  // Parsing happens in four stages. In the first stage, we replace certain
  // Unicode characters with escape sequences. JavaScript handles many characters
  // incorrectly, either silently deleting them, or treating them as line endings.

      text = String(text);
      cx.lastIndex = 0;
      if (cx.test(text)) {
          text = text.replace(cx, function (a) {
              return '\\u' +
                  ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
          });
      }

  // In the second stage, we run the text against regular expressions that look
  // for non-JSON patterns. We are especially concerned with '()' and 'new'
  // because they can cause invocation, and '=' because it can cause mutation.
  // But just to be safe, we want to reject all unexpected forms.

  // We split the second stage into 4 regexp operations in order to work around
  // crippling inefficiencies in IE's and Safari's regexp engines. First we
  // replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
  // replace all simple value tokens with ']' characters. Third, we delete all
  // open brackets that follow a colon or comma or that begin the text. Finally,
  // we look to see that the remaining characters are only whitespace or ']' or
  // ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.

      if (/^[\],:{}\s]*$/
              .test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@')
                  .replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']')
                  .replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {

  // In the third stage we use the eval function to compile the text into a
  // JavaScript structure. The '{' operator is subject to a syntactic ambiguity
  // in JavaScript: it can begin a block or an object literal. We wrap the text
  // in parens to eliminate the ambiguity.

          j = eval('(' + text + ')');

  // In the optional fourth stage, we recursively walk the new structure, passing
  // each name/value pair to a reviver function for possible transformation.

          return typeof reviver === 'function' ?
              walk({'': j}, '') : j;
      }

  // If the text is not JSON parseable, then a SyntaxError is thrown.

      throw new SyntaxError('JSON.parse');
  };

})(
    'undefined' != typeof io ? io : module.exports
  , typeof JSON !== 'undefined' ? JSON : undefined
);

/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, io) {

  /**
   * Parser namespace.
   *
   * @namespace
   */

  var parser = exports.parser = {};

  /**
   * Packet types.
   */

  var packets = parser.packets = [
      'disconnect'
    , 'connect'
    , 'heartbeat'
    , 'message'
    , 'json'
    , 'event'
    , 'ack'
    , 'error'
    , 'noop'
  ];

  /**
   * Errors reasons.
   */

  var reasons = parser.reasons = [
      'transport not supported'
    , 'client not handshaken'
    , 'unauthorized'
  ];

  /**
   * Errors advice.
   */

  var advice = parser.advice = [
      'reconnect'
  ];

  /**
   * Shortcuts.
   */

  var JSON = io.JSON
    , indexOf = io.util.indexOf;

  /**
   * Encodes a packet.
   *
   * @api private
   */

  parser.encodePacket = function (packet) {
    var type = indexOf(packets, packet.type)
      , id = packet.id || ''
      , endpoint = packet.endpoint || ''
      , ack = packet.ack
      , data = null;

    switch (packet.type) {
      case 'error':
        var reason = packet.reason ? indexOf(reasons, packet.reason) : ''
          , adv = packet.advice ? indexOf(advice, packet.advice) : '';

        if (reason !== '' || adv !== '')
          data = reason + (adv !== '' ? ('+' + adv) : '');

        break;

      case 'message':
        if (packet.data !== '')
          data = packet.data;
        break;

      case 'event':
        var ev = { name: packet.name };

        if (packet.args && packet.args.length) {
          ev.args = packet.args;
        }

        data = JSON.stringify(ev);
        break;

      case 'json':
        data = JSON.stringify(packet.data);
        break;

      case 'connect':
        if (packet.qs)
          data = packet.qs;
        break;

      case 'ack':
        data = packet.ackId
          + (packet.args && packet.args.length
              ? '+' + JSON.stringify(packet.args) : '');
        break;
    }

    // construct packet with required fragments
    var encoded = [
        type
      , id + (ack == 'data' ? '+' : '')
      , endpoint
    ];

    // data fragment is optional
    if (data !== null && data !== undefined)
      encoded.push(data);

    return encoded.join(':');
  };

  /**
   * Encodes multiple messages (payload).
   *
   * @param {Array} messages
   * @api private
   */

  parser.encodePayload = function (packets) {
    var decoded = '';

    if (packets.length == 1)
      return packets[0];

    for (var i = 0, l = packets.length; i < l; i++) {
      var packet = packets[i];
      decoded += '\ufffd' + packet.length + '\ufffd' + packets[i];
    }

    return decoded;
  };

  /**
   * Decodes a packet
   *
   * @api private
   */

  var regexp = /([^:]+):([0-9]+)?(\+)?:([^:]+)?:?([\s\S]*)?/;

  parser.decodePacket = function (data) {
    var pieces = data.match(regexp);

    if (!pieces) return {};

    var id = pieces[2] || ''
      , data = pieces[5] || ''
      , packet = {
            type: packets[pieces[1]]
          , endpoint: pieces[4] || ''
        };

    // whether we need to acknowledge the packet
    if (id) {
      packet.id = id;
      if (pieces[3])
        packet.ack = 'data';
      else
        packet.ack = true;
    }

    // handle different packet types
    switch (packet.type) {
      case 'error':
        var pieces = data.split('+');
        packet.reason = reasons[pieces[0]] || '';
        packet.advice = advice[pieces[1]] || '';
        break;

      case 'message':
        packet.data = data || '';
        break;

      case 'event':
        try {
          var opts = JSON.parse(data);
          packet.name = opts.name;
          packet.args = opts.args;
        } catch (e) { }

        packet.args = packet.args || [];
        break;

      case 'json':
        try {
          packet.data = JSON.parse(data);
        } catch (e) { }
        break;

      case 'connect':
        packet.qs = data || '';
        break;

      case 'ack':
        var pieces = data.match(/^([0-9]+)(\+)?(.*)/);
        if (pieces) {
          packet.ackId = pieces[1];
          packet.args = [];

          if (pieces[3]) {
            try {
              packet.args = pieces[3] ? JSON.parse(pieces[3]) : [];
            } catch (e) { }
          }
        }
        break;

      case 'disconnect':
      case 'heartbeat':
        break;
    };

    return packet;
  };

  /**
   * Decodes data payload. Detects multiple messages
   *
   * @return {Array} messages
   * @api public
   */

  parser.decodePayload = function (data) {
    // IE doesn't like data[i] for unicode chars, charAt works fine
    if (data.charAt(0) == '\ufffd') {
      var ret = [];

      for (var i = 1, length = ''; i < data.length; i++) {
        if (data.charAt(i) == '\ufffd') {
          ret.push(parser.decodePacket(data.substr(i + 1).substr(0, length)));
          i += Number(length) + 1;
          length = '';
        } else {
          length += data.charAt(i);
        }
      }

      return ret;
    } else {
      return [parser.decodePacket(data)];
    }
  };

})(
    'undefined' != typeof io ? io : module.exports
  , 'undefined' != typeof io ? io : module.parent.exports
);
/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, io) {

  /**
   * Expose constructor.
   */

  exports.Transport = Transport;

  /**
   * This is the transport template for all supported transport methods.
   *
   * @constructor
   * @api public
   */

  function Transport (socket, sessid) {
    this.socket = socket;
    this.sessid = sessid;
  };

  /**
   * Apply EventEmitter mixin.
   */

  io.util.mixin(Transport, io.EventEmitter);


  /**
   * Indicates whether heartbeats is enabled for this transport
   *
   * @api private
   */

  Transport.prototype.heartbeats = function () {
    return true;
  };

  /**
   * Handles the response from the server. When a new response is received
   * it will automatically update the timeout, decode the message and
   * forwards the response to the onMessage function for further processing.
   *
   * @param {String} data Response from the server.
   * @api private
   */

  Transport.prototype.onData = function (data) {
    this.clearCloseTimeout();

    // If the connection in currently open (or in a reopening state) reset the close
    // timeout since we have just received data. This check is necessary so
    // that we don't reset the timeout on an explicitly disconnected connection.
    if (this.socket.connected || this.socket.connecting || this.socket.reconnecting) {
      this.setCloseTimeout();
    }

    if (data !== '') {
      // todo: we should only do decodePayload for xhr transports
      var msgs = io.parser.decodePayload(data);

      if (msgs && msgs.length) {
        for (var i = 0, l = msgs.length; i < l; i++) {
          this.onPacket(msgs[i]);
        }
      }
    }

    return this;
  };

  /**
   * Handles packets.
   *
   * @api private
   */

  Transport.prototype.onPacket = function (packet) {
    this.socket.setHeartbeatTimeout();

    if (packet.type == 'heartbeat') {
      return this.onHeartbeat();
    }

    if (packet.type == 'connect' && packet.endpoint == '') {
      this.onConnect();
    }

    if (packet.type == 'error' && packet.advice == 'reconnect') {
      this.isOpen = false;
    }

    this.socket.onPacket(packet);

    return this;
  };

  /**
   * Sets close timeout
   *
   * @api private
   */

  Transport.prototype.setCloseTimeout = function () {
    if (!this.closeTimeout) {
      var self = this;

      this.closeTimeout = setTimeout(function () {
        self.onDisconnect();
      }, this.socket.closeTimeout);
    }
  };

  /**
   * Called when transport disconnects.
   *
   * @api private
   */

  Transport.prototype.onDisconnect = function () {
    if (this.isOpen) this.close();
    this.clearTimeouts();
    this.socket.onDisconnect();
    return this;
  };

  /**
   * Called when transport connects
   *
   * @api private
   */

  Transport.prototype.onConnect = function () {
    this.socket.onConnect();
    return this;
  };

  /**
   * Clears close timeout
   *
   * @api private
   */

  Transport.prototype.clearCloseTimeout = function () {
    if (this.closeTimeout) {
      clearTimeout(this.closeTimeout);
      this.closeTimeout = null;
    }
  };

  /**
   * Clear timeouts
   *
   * @api private
   */

  Transport.prototype.clearTimeouts = function () {
    this.clearCloseTimeout();

    if (this.reopenTimeout) {
      clearTimeout(this.reopenTimeout);
    }
  };

  /**
   * Sends a packet
   *
   * @param {Object} packet object.
   * @api private
   */

  Transport.prototype.packet = function (packet) {
    this.send(io.parser.encodePacket(packet));
  };

  /**
   * Send the received heartbeat message back to server. So the server
   * knows we are still connected.
   *
   * @param {String} heartbeat Heartbeat response from the server.
   * @api private
   */

  Transport.prototype.onHeartbeat = function (heartbeat) {
    this.packet({ type: 'heartbeat' });
  };

  /**
   * Called when the transport opens.
   *
   * @api private
   */

  Transport.prototype.onOpen = function () {
    this.isOpen = true;
    this.clearCloseTimeout();
    this.socket.onOpen();
  };

  /**
   * Notifies the base when the connection with the Socket.IO server
   * has been disconnected.
   *
   * @api private
   */

  Transport.prototype.onClose = function () {
    var self = this;

    /* FIXME: reopen delay causing a infinit loop
    this.reopenTimeout = setTimeout(function () {
      self.open();
    }, this.socket.options['reopen delay']);*/

    this.isOpen = false;
    this.socket.onClose();
    this.onDisconnect();
  };

  /**
   * Generates a connection url based on the Socket.IO URL Protocol.
   * See <https://github.com/learnboost/socket.io-node/> for more details.
   *
   * @returns {String} Connection url
   * @api private
   */

  Transport.prototype.prepareUrl = function () {
    var options = this.socket.options;

    return this.scheme() + '://'
      + options.host + ':' + options.port + '/'
      + options.resource + '/' + io.protocol
      + '/' + this.name + '/' + this.sessid;
  };

  /**
   * Checks if the transport is ready to start a connection.
   *
   * @param {Socket} socket The socket instance that needs a transport
   * @param {Function} fn The callback
   * @api private
   */

  Transport.prototype.ready = function (socket, fn) {
    fn.call(this);
  };
})(
    'undefined' != typeof io ? io : module.exports
  , 'undefined' != typeof io ? io : module.parent.exports
);
/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, io, global) {

  /**
   * Expose constructor.
   */

  exports.Socket = Socket;

  /**
   * Create a new `Socket.IO client` which can establish a persistent
   * connection with a Socket.IO enabled server.
   *
   * @api public
   */

  function Socket (options) {
    this.options = {
        port: 80
      , secure: false
      , document: 'document' in global ? document : false
      , resource: 'socket.io'
      , transports: io.transports
      , 'connect timeout': 10000
      , 'try multiple transports': true
      , 'reconnect': true
      , 'reconnection delay': 500
      , 'reconnection limit': Infinity
      , 'reopen delay': 3000
      , 'max reconnection attempts': 10
      , 'sync disconnect on unload': false
      , 'auto connect': true
      , 'flash policy port': 10843
      , 'manualFlush': false
    };

    io.util.merge(this.options, options);

    this.connected = false;
    this.open = false;
    this.connecting = false;
    this.reconnecting = false;
    this.namespaces = {};
    this.buffer = [];
    this.doBuffer = false;

    if (this.options['sync disconnect on unload'] &&
        (!this.isXDomain() || io.util.ua.hasCORS)) {
      var self = this;
      io.util.on(global, 'beforeunload', function () {
        self.disconnectSync();
      }, false);
    }

    if (this.options['auto connect']) {
      this.connect();
    }
};

  /**
   * Apply EventEmitter mixin.
   */

  io.util.mixin(Socket, io.EventEmitter);

  /**
   * Returns a namespace listener/emitter for this socket
   *
   * @api public
   */

  Socket.prototype.of = function (name) {
    if (!this.namespaces[name]) {
      this.namespaces[name] = new io.SocketNamespace(this, name);

      if (name !== '') {
        this.namespaces[name].packet({ type: 'connect' });
      }
    }

    return this.namespaces[name];
  };

  /**
   * Emits the given event to the Socket and all namespaces
   *
   * @api private
   */

  Socket.prototype.publish = function () {
    this.emit.apply(this, arguments);

    var nsp;

    for (var i in this.namespaces) {
      if (this.namespaces.hasOwnProperty(i)) {
        nsp = this.of(i);
        nsp.$emit.apply(nsp, arguments);
      }
    }
  };

  /**
   * Performs the handshake
   *
   * @api private
   */

  function empty () { };

  Socket.prototype.handshake = function (fn) {
    var self = this
      , options = this.options;

    function complete (data) {
      if (data instanceof Error) {
        self.connecting = false;
        self.onError(data.message);
      } else {
        fn.apply(null, data.split(':'));
      }
    };

    var url = [
          'http' + (options.secure ? 's' : '') + ':/'
        , options.host + ':' + options.port
        , options.resource
        , io.protocol
        , io.util.query(this.options.query, 't=' + +new Date)
      ].join('/');

    if (this.isXDomain() && !io.util.ua.hasCORS) {
      var insertAt = document.getElementsByTagName('script')[0]
        , script = document.createElement('script');

      script.src = url + '&jsonp=' + io.j.length;
      insertAt.parentNode.insertBefore(script, insertAt);

      io.j.push(function (data) {
        complete(data);
        script.parentNode.removeChild(script);
      });
    } else {
      var xhr = io.util.request();

      xhr.open('GET', url, true);
      if (this.isXDomain()) {
        xhr.withCredentials = true;
      }
      xhr.onreadystatechange = function () {
        if (xhr.readyState == 4) {
          xhr.onreadystatechange = empty;

          if (xhr.status == 200) {
            complete(xhr.responseText);
          } else if (xhr.status == 403) {
            self.onError(xhr.responseText);
          } else {
            self.connecting = false;            
            !self.reconnecting && self.onError(xhr.responseText);
          }
        }
      };
      xhr.send(null);
    }
  };

  /**
   * Find an available transport based on the options supplied in the constructor.
   *
   * @api private
   */

  Socket.prototype.getTransport = function (override) {
    var transports = override || this.transports, match;

    for (var i = 0, transport; transport = transports[i]; i++) {
      if (io.Transport[transport]
        && io.Transport[transport].check(this)
        && (!this.isXDomain() || io.Transport[transport].xdomainCheck(this))) {
        return new io.Transport[transport](this, this.sessionid);
      }
    }

    return null;
  };

  /**
   * Connects to the server.
   *
   * @param {Function} [fn] Callback.
   * @returns {io.Socket}
   * @api public
   */

  Socket.prototype.connect = function (fn) {
    if (this.connecting) {
      return this;
    }

    var self = this;
    self.connecting = true;
    
    this.handshake(function (sid, heartbeat, close, transports) {
      self.sessionid = sid;
      self.closeTimeout = close * 1000;
      self.heartbeatTimeout = heartbeat * 1000;
      if(!self.transports)
          self.transports = self.origTransports = (transports ? io.util.intersect(
              transports.split(',')
            , self.options.transports
          ) : self.options.transports);

      self.setHeartbeatTimeout();

      function connect (transports){
        if (self.transport) self.transport.clearTimeouts();

        self.transport = self.getTransport(transports);
        if (!self.transport) return self.publish('connect_failed');

        // once the transport is ready
        self.transport.ready(self, function () {
          self.connecting = true;
          self.publish('connecting', self.transport.name);
          self.transport.open();

          if (self.options['connect timeout']) {
            self.connectTimeoutTimer = setTimeout(function () {
              if (!self.connected) {
                self.connecting = false;

                if (self.options['try multiple transports']) {
                  var remaining = self.transports;

                  while (remaining.length > 0 && remaining.splice(0,1)[0] !=
                         self.transport.name) {}

                    if (remaining.length){
                      connect(remaining);
                    } else {
                      self.publish('connect_failed');
                    }
                }
              }
            }, self.options['connect timeout']);
          }
        });
      }

      connect(self.transports);

      self.once('connect', function (){
        clearTimeout(self.connectTimeoutTimer);

        fn && typeof fn == 'function' && fn();
      });
    });

    return this;
  };

  /**
   * Clears and sets a new heartbeat timeout using the value given by the
   * server during the handshake.
   *
   * @api private
   */

  Socket.prototype.setHeartbeatTimeout = function () {
    clearTimeout(this.heartbeatTimeoutTimer);
    if(this.transport && !this.transport.heartbeats()) return;

    var self = this;
    this.heartbeatTimeoutTimer = setTimeout(function () {
      self.transport.onClose();
    }, this.heartbeatTimeout);
  };

  /**
   * Sends a message.
   *
   * @param {Object} data packet.
   * @returns {io.Socket}
   * @api public
   */

  Socket.prototype.packet = function (data) {
    if (this.connected && !this.doBuffer) {
      this.transport.packet(data);
    } else {
      this.buffer.push(data);
    }

    return this;
  };

  /**
   * Sets buffer state
   *
   * @api private
   */

  Socket.prototype.setBuffer = function (v) {
    this.doBuffer = v;

    if (!v && this.connected && this.buffer.length) {
      if (!this.options['manualFlush']) {
        this.flushBuffer();
      }
    }
  };

  /**
   * Flushes the buffer data over the wire.
   * To be invoked manually when 'manualFlush' is set to true.
   *
   * @api public
   */

  Socket.prototype.flushBuffer = function() {
    this.transport.payload(this.buffer);
    this.buffer = [];
  };
  

  /**
   * Disconnect the established connect.
   *
   * @returns {io.Socket}
   * @api public
   */

  Socket.prototype.disconnect = function () {
    if (this.connected || this.connecting) {
      if (this.open) {
        this.of('').packet({ type: 'disconnect' });
      }

      // handle disconnection immediately
      this.onDisconnect('booted');
    }

    return this;
  };

  /**
   * Disconnects the socket with a sync XHR.
   *
   * @api private
   */

  Socket.prototype.disconnectSync = function () {
    // ensure disconnection
    var xhr = io.util.request();
    var uri = [
        'http' + (this.options.secure ? 's' : '') + ':/'
      , this.options.host + ':' + this.options.port
      , this.options.resource
      , io.protocol
      , ''
      , this.sessionid
    ].join('/') + '/?disconnect=1';

    xhr.open('GET', uri, false);
    xhr.send(null);

    // handle disconnection immediately
    this.onDisconnect('booted');
  };

  /**
   * Check if we need to use cross domain enabled transports. Cross domain would
   * be a different port or different domain name.
   *
   * @returns {Boolean}
   * @api private
   */

  Socket.prototype.isXDomain = function () {

    var port = global.location.port ||
      ('https:' == global.location.protocol ? 443 : 80);

    return this.options.host !== global.location.hostname 
      || this.options.port != port;
  };

  /**
   * Called upon handshake.
   *
   * @api private
   */

  Socket.prototype.onConnect = function () {
    if (!this.connected) {
      this.connected = true;
      this.connecting = false;
      if (!this.doBuffer) {
        // make sure to flush the buffer
        this.setBuffer(false);
      }
      this.emit('connect');
    }
  };

  /**
   * Called when the transport opens
   *
   * @api private
   */

  Socket.prototype.onOpen = function () {
    this.open = true;
  };

  /**
   * Called when the transport closes.
   *
   * @api private
   */

  Socket.prototype.onClose = function () {
    this.open = false;
    clearTimeout(this.heartbeatTimeoutTimer);
  };

  /**
   * Called when the transport first opens a connection
   *
   * @param text
   */

  Socket.prototype.onPacket = function (packet) {
    this.of(packet.endpoint).onPacket(packet);
  };

  /**
   * Handles an error.
   *
   * @api private
   */

  Socket.prototype.onError = function (err) {
    if (err && err.advice) {
      if (err.advice === 'reconnect' && (this.connected || this.connecting)) {
        this.disconnect();
        if (this.options.reconnect) {
          this.reconnect();
        }
      }
    }

    this.publish('error', err && err.reason ? err.reason : err);
  };

  /**
   * Called when the transport disconnects.
   *
   * @api private
   */

  Socket.prototype.onDisconnect = function (reason) {
    var wasConnected = this.connected
      , wasConnecting = this.connecting;

    this.connected = false;
    this.connecting = false;
    this.open = false;

    if (wasConnected || wasConnecting) {
      this.transport.close();
      this.transport.clearTimeouts();
      if (wasConnected) {
        this.publish('disconnect', reason);

        if ('booted' != reason && this.options.reconnect && !this.reconnecting) {
          this.reconnect();
        }
      }
    }
  };

  /**
   * Called upon reconnection.
   *
   * @api private
   */

  Socket.prototype.reconnect = function () {
    this.reconnecting = true;
    this.reconnectionAttempts = 0;
    this.reconnectionDelay = this.options['reconnection delay'];

    var self = this
      , maxAttempts = this.options['max reconnection attempts']
      , tryMultiple = this.options['try multiple transports']
      , limit = this.options['reconnection limit'];

    function reset () {
      if (self.connected) {
        for (var i in self.namespaces) {
          if (self.namespaces.hasOwnProperty(i) && '' !== i) {
              self.namespaces[i].packet({ type: 'connect' });
          }
        }
        self.publish('reconnect', self.transport.name, self.reconnectionAttempts);
      }

      clearTimeout(self.reconnectionTimer);

      self.removeListener('connect_failed', maybeReconnect);
      self.removeListener('connect', maybeReconnect);

      self.reconnecting = false;

      delete self.reconnectionAttempts;
      delete self.reconnectionDelay;
      delete self.reconnectionTimer;
      delete self.redoTransports;

      self.options['try multiple transports'] = tryMultiple;
    };

    function maybeReconnect () {
      if (!self.reconnecting) {
        return;
      }

      if (self.connected) {
        return reset();
      };

      if (self.connecting && self.reconnecting) {
        return self.reconnectionTimer = setTimeout(maybeReconnect, 1000);
      }

      if (self.reconnectionAttempts++ >= maxAttempts) {
        if (!self.redoTransports) {
          self.on('connect_failed', maybeReconnect);
          self.options['try multiple transports'] = true;
          self.transports = self.origTransports;
          self.transport = self.getTransport();
          self.redoTransports = true;
          self.connect();
        } else {
          self.publish('reconnect_failed');
          reset();
        }
      } else {
        if (self.reconnectionDelay < limit) {
          self.reconnectionDelay *= 2; // exponential back off
        }

        self.connect();
        self.publish('reconnecting', self.reconnectionDelay, self.reconnectionAttempts);
        self.reconnectionTimer = setTimeout(maybeReconnect, self.reconnectionDelay);
      }
    };

    this.options['try multiple transports'] = false;
    this.reconnectionTimer = setTimeout(maybeReconnect, this.reconnectionDelay);

    this.on('connect', maybeReconnect);
  };

})(
    'undefined' != typeof io ? io : module.exports
  , 'undefined' != typeof io ? io : module.parent.exports
  , this
);
/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, io) {

  /**
   * Expose constructor.
   */

  exports.SocketNamespace = SocketNamespace;

  /**
   * Socket namespace constructor.
   *
   * @constructor
   * @api public
   */

  function SocketNamespace (socket, name) {
    this.socket = socket;
    this.name = name || '';
    this.flags = {};
    this.json = new Flag(this, 'json');
    this.ackPackets = 0;
    this.acks = {};
  };

  /**
   * Apply EventEmitter mixin.
   */

  io.util.mixin(SocketNamespace, io.EventEmitter);

  /**
   * Copies emit since we override it
   *
   * @api private
   */

  SocketNamespace.prototype.$emit = io.EventEmitter.prototype.emit;

  /**
   * Creates a new namespace, by proxying the request to the socket. This
   * allows us to use the synax as we do on the server.
   *
   * @api public
   */

  SocketNamespace.prototype.of = function () {
    return this.socket.of.apply(this.socket, arguments);
  };

  /**
   * Sends a packet.
   *
   * @api private
   */

  SocketNamespace.prototype.packet = function (packet) {
    packet.endpoint = this.name;
    this.socket.packet(packet);
    this.flags = {};
    return this;
  };

  /**
   * Sends a message
   *
   * @api public
   */

  SocketNamespace.prototype.send = function (data, fn) {
    var packet = {
        type: this.flags.json ? 'json' : 'message'
      , data: data
    };

    if ('function' == typeof fn) {
      packet.id = ++this.ackPackets;
      packet.ack = true;
      this.acks[packet.id] = fn;
    }

    return this.packet(packet);
  };

  /**
   * Emits an event
   *
   * @api public
   */
  
  SocketNamespace.prototype.emit = function (name) {
    var args = Array.prototype.slice.call(arguments, 1)
      , lastArg = args[args.length - 1]
      , packet = {
            type: 'event'
          , name: name
        };

    if ('function' == typeof lastArg) {
      packet.id = ++this.ackPackets;
      packet.ack = 'data';
      this.acks[packet.id] = lastArg;
      args = args.slice(0, args.length - 1);
    }

    packet.args = args;

    return this.packet(packet);
  };

  /**
   * Disconnects the namespace
   *
   * @api private
   */

  SocketNamespace.prototype.disconnect = function () {
    if (this.name === '') {
      this.socket.disconnect();
    } else {
      this.packet({ type: 'disconnect' });
      this.$emit('disconnect');
    }

    return this;
  };

  /**
   * Handles a packet
   *
   * @api private
   */

  SocketNamespace.prototype.onPacket = function (packet) {
    var self = this;

    function ack () {
      self.packet({
          type: 'ack'
        , args: io.util.toArray(arguments)
        , ackId: packet.id
      });
    };

    switch (packet.type) {
      case 'connect':
        this.$emit('connect');
        break;

      case 'disconnect':
        if (this.name === '') {
          this.socket.onDisconnect(packet.reason || 'booted');
        } else {
          this.$emit('disconnect', packet.reason);
        }
        break;

      case 'message':
      case 'json':
        var params = ['message', packet.data];

        if (packet.ack == 'data') {
          params.push(ack);
        } else if (packet.ack) {
          this.packet({ type: 'ack', ackId: packet.id });
        }

        this.$emit.apply(this, params);
        break;

      case 'event':
        var params = [packet.name].concat(packet.args);

        if (packet.ack == 'data')
          params.push(ack);

        this.$emit.apply(this, params);
        break;

      case 'ack':
        if (this.acks[packet.ackId]) {
          this.acks[packet.ackId].apply(this, packet.args);
          delete this.acks[packet.ackId];
        }
        break;

      case 'error':
        if (packet.advice){
          this.socket.onError(packet);
        } else {
          if (packet.reason == 'unauthorized') {
            this.$emit('connect_failed', packet.reason);
          } else {
            this.$emit('error', packet.reason);
          }
        }
        break;
    }
  };

  /**
   * Flag interface.
   *
   * @api private
   */

  function Flag (nsp, name) {
    this.namespace = nsp;
    this.name = name;
  };

  /**
   * Send a message
   *
   * @api public
   */

  Flag.prototype.send = function () {
    this.namespace.flags[this.name] = true;
    this.namespace.send.apply(this.namespace, arguments);
  };

  /**
   * Emit an event
   *
   * @api public
   */

  Flag.prototype.emit = function () {
    this.namespace.flags[this.name] = true;
    this.namespace.emit.apply(this.namespace, arguments);
  };

})(
    'undefined' != typeof io ? io : module.exports
  , 'undefined' != typeof io ? io : module.parent.exports
);

/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, io, global) {

  /**
   * Expose constructor.
   */

  exports.websocket = WS;

  /**
   * The WebSocket transport uses the HTML5 WebSocket API to establish an
   * persistent connection with the Socket.IO server. This transport will also
   * be inherited by the FlashSocket fallback as it provides a API compatible
   * polyfill for the WebSockets.
   *
   * @constructor
   * @extends {io.Transport}
   * @api public
   */

  function WS (socket) {
    io.Transport.apply(this, arguments);
  };

  /**
   * Inherits from Transport.
   */

  io.util.inherit(WS, io.Transport);

  /**
   * Transport name
   *
   * @api public
   */

  WS.prototype.name = 'websocket';

  /**
   * Initializes a new `WebSocket` connection with the Socket.IO server. We attach
   * all the appropriate listeners to handle the responses from the server.
   *
   * @returns {Transport}
   * @api public
   */

  WS.prototype.open = function () {
    var query = io.util.query(this.socket.options.query)
      , self = this
      , Socket


    if (!Socket) {
      Socket = global.MozWebSocket || global.WebSocket;
    }

    this.websocket = new Socket(this.prepareUrl() + query);

    this.websocket.onopen = function () {
      self.onOpen();
      self.socket.setBuffer(false);
    };
    this.websocket.onmessage = function (ev) {
      self.onData(ev.data);
    };
    this.websocket.onclose = function () {
      self.onClose();
      self.socket.setBuffer(true);
    };
    this.websocket.onerror = function (e) {
      self.onError(e);
    };

    return this;
  };

  /**
   * Send a message to the Socket.IO server. The message will automatically be
   * encoded in the correct message format.
   *
   * @returns {Transport}
   * @api public
   */

  // Do to a bug in the current IDevices browser, we need to wrap the send in a 
  // setTimeout, when they resume from sleeping the browser will crash if 
  // we don't allow the browser time to detect the socket has been closed
  if (io.util.ua.iDevice) {
    WS.prototype.send = function (data) {
      var self = this;
      setTimeout(function() {
         self.websocket.send(data);
      },0);
      return this;
    };
  } else {
    WS.prototype.send = function (data) {
      this.websocket.send(data);
      return this;
    };
  }

  /**
   * Payload
   *
   * @api private
   */

  WS.prototype.payload = function (arr) {
    for (var i = 0, l = arr.length; i < l; i++) {
      this.packet(arr[i]);
    }
    return this;
  };

  /**
   * Disconnect the established `WebSocket` connection.
   *
   * @returns {Transport}
   * @api public
   */

  WS.prototype.close = function () {
    this.websocket.close();
    return this;
  };

  /**
   * Handle the errors that `WebSocket` might be giving when we
   * are attempting to connect or send messages.
   *
   * @param {Error} e The error.
   * @api private
   */

  WS.prototype.onError = function (e) {
    this.socket.onError(e);
  };

  /**
   * Returns the appropriate scheme for the URI generation.
   *
   * @api private
   */
  WS.prototype.scheme = function () {
    return this.socket.options.secure ? 'wss' : 'ws';
  };

  /**
   * Checks if the browser has support for native `WebSockets` and that
   * it's not the polyfill created for the FlashSocket transport.
   *
   * @return {Boolean}
   * @api public
   */

  WS.check = function () {
    return ('WebSocket' in global && !('__addTask' in WebSocket))
          || 'MozWebSocket' in global;
  };

  /**
   * Check if the `WebSocket` transport support cross domain communications.
   *
   * @returns {Boolean}
   * @api public
   */

  WS.xdomainCheck = function () {
    return true;
  };

  /**
   * Add the transport to your public io.transports array.
   *
   * @api private
   */

  io.transports.push('websocket');

})(
    'undefined' != typeof io ? io.Transport : module.exports
  , 'undefined' != typeof io ? io : module.parent.exports
  , this
);

/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, io) {

  /**
   * Expose constructor.
   */

  exports.flashsocket = Flashsocket;

  /**
   * The FlashSocket transport. This is a API wrapper for the HTML5 WebSocket
   * specification. It uses a .swf file to communicate with the server. If you want
   * to serve the .swf file from a other server than where the Socket.IO script is
   * coming from you need to use the insecure version of the .swf. More information
   * about this can be found on the github page.
   *
   * @constructor
   * @extends {io.Transport.websocket}
   * @api public
   */

  function Flashsocket () {
    io.Transport.websocket.apply(this, arguments);
  };

  /**
   * Inherits from Transport.
   */

  io.util.inherit(Flashsocket, io.Transport.websocket);

  /**
   * Transport name
   *
   * @api public
   */

  Flashsocket.prototype.name = 'flashsocket';

  /**
   * Disconnect the established `FlashSocket` connection. This is done by adding a 
   * new task to the FlashSocket. The rest will be handled off by the `WebSocket` 
   * transport.
   *
   * @returns {Transport}
   * @api public
   */

  Flashsocket.prototype.open = function () {
    var self = this
      , args = arguments;

    WebSocket.__addTask(function () {
      io.Transport.websocket.prototype.open.apply(self, args);
    });
    return this;
  };
  
  /**
   * Sends a message to the Socket.IO server. This is done by adding a new
   * task to the FlashSocket. The rest will be handled off by the `WebSocket` 
   * transport.
   *
   * @returns {Transport}
   * @api public
   */

  Flashsocket.prototype.send = function () {
    var self = this, args = arguments;
    WebSocket.__addTask(function () {
      io.Transport.websocket.prototype.send.apply(self, args);
    });
    return this;
  };

  /**
   * Disconnects the established `FlashSocket` connection.
   *
   * @returns {Transport}
   * @api public
   */

  Flashsocket.prototype.close = function () {
    WebSocket.__tasks.length = 0;
    io.Transport.websocket.prototype.close.call(this);
    return this;
  };

  /**
   * The WebSocket fall back needs to append the flash container to the body
   * element, so we need to make sure we have access to it. Or defer the call
   * until we are sure there is a body element.
   *
   * @param {Socket} socket The socket instance that needs a transport
   * @param {Function} fn The callback
   * @api private
   */

  Flashsocket.prototype.ready = function (socket, fn) {
    function init () {
      var options = socket.options
        , port = options['flash policy port']
        , path = [
              'http' + (options.secure ? 's' : '') + ':/'
            , options.host + ':' + options.port
            , options.resource
            , 'static/flashsocket'
            , 'WebSocketMain' + (socket.isXDomain() ? 'Insecure' : '') + '.swf'
          ];

      // Only start downloading the swf file when the checked that this browser
      // actually supports it
      if (!Flashsocket.loaded) {
        if (typeof WEB_SOCKET_SWF_LOCATION === 'undefined') {
          // Set the correct file based on the XDomain settings
          WEB_SOCKET_SWF_LOCATION = path.join('/');
        }

        if (port !== 843) {
          WebSocket.loadFlashPolicyFile('xmlsocket://' + options.host + ':' + port);
        }

        WebSocket.__initialize();
        Flashsocket.loaded = true;
      }

      fn.call(self);
    }

    var self = this;
    if (document.body) return init();

    io.util.load(init);
  };

  /**
   * Check if the FlashSocket transport is supported as it requires that the Adobe
   * Flash Player plug-in version `10.0.0` or greater is installed. And also check if
   * the polyfill is correctly loaded.
   *
   * @returns {Boolean}
   * @api public
   */

  Flashsocket.check = function () {
    if (
        typeof WebSocket == 'undefined'
      || !('__initialize' in WebSocket) || !swfobject
    ) return false;

    return swfobject.getFlashPlayerVersion().major >= 10;
  };

  /**
   * Check if the FlashSocket transport can be used as cross domain / cross origin 
   * transport. Because we can't see which type (secure or insecure) of .swf is used
   * we will just return true.
   *
   * @returns {Boolean}
   * @api public
   */

  Flashsocket.xdomainCheck = function () {
    return true;
  };

  /**
   * Disable AUTO_INITIALIZATION
   */

  if (typeof window != 'undefined') {
    WEB_SOCKET_DISABLE_AUTO_INITIALIZATION = true;
  }

  /**
   * Add the transport to your public io.transports array.
   *
   * @api private
   */

  io.transports.push('flashsocket');
})(
    'undefined' != typeof io ? io.Transport : module.exports
  , 'undefined' != typeof io ? io : module.parent.exports
);
/*	SWFObject v2.2 <http://code.google.com/p/swfobject/> 
	is released under the MIT License <http://www.opensource.org/licenses/mit-license.php> 
*/
if ('undefined' != typeof window) {
var swfobject=function(){var D="undefined",r="object",S="Shockwave Flash",W="ShockwaveFlash.ShockwaveFlash",q="application/x-shockwave-flash",R="SWFObjectExprInst",x="onreadystatechange",O=window,j=document,t=navigator,T=false,U=[h],o=[],N=[],I=[],l,Q,E,B,J=false,a=false,n,G,m=true,M=function(){var aa=typeof j.getElementById!=D&&typeof j.getElementsByTagName!=D&&typeof j.createElement!=D,ah=t.userAgent.toLowerCase(),Y=t.platform.toLowerCase(),ae=Y?/win/.test(Y):/win/.test(ah),ac=Y?/mac/.test(Y):/mac/.test(ah),af=/webkit/.test(ah)?parseFloat(ah.replace(/^.*webkit\/(\d+(\.\d+)?).*$/,"$1")):false,X=!+"\v1",ag=[0,0,0],ab=null;if(typeof t.plugins!=D&&typeof t.plugins[S]==r){ab=t.plugins[S].description;if(ab&&!(typeof t.mimeTypes!=D&&t.mimeTypes[q]&&!t.mimeTypes[q].enabledPlugin)){T=true;X=false;ab=ab.replace(/^.*\s+(\S+\s+\S+$)/,"$1");ag[0]=parseInt(ab.replace(/^(.*)\..*$/,"$1"),10);ag[1]=parseInt(ab.replace(/^.*\.(.*)\s.*$/,"$1"),10);ag[2]=/[a-zA-Z]/.test(ab)?parseInt(ab.replace(/^.*[a-zA-Z]+(.*)$/,"$1"),10):0}}else{if(typeof O[(['Active'].concat('Object').join('X'))]!=D){try{var ad=new window[(['Active'].concat('Object').join('X'))](W);if(ad){ab=ad.GetVariable("$version");if(ab){X=true;ab=ab.split(" ")[1].split(",");ag=[parseInt(ab[0],10),parseInt(ab[1],10),parseInt(ab[2],10)]}}}catch(Z){}}}return{w3:aa,pv:ag,wk:af,ie:X,win:ae,mac:ac}}(),k=function(){if(!M.w3){return}if((typeof j.readyState!=D&&j.readyState=="complete")||(typeof j.readyState==D&&(j.getElementsByTagName("body")[0]||j.body))){f()}if(!J){if(typeof j.addEventListener!=D){j.addEventListener("DOMContentLoaded",f,false)}if(M.ie&&M.win){j.attachEvent(x,function(){if(j.readyState=="complete"){j.detachEvent(x,arguments.callee);f()}});if(O==top){(function(){if(J){return}try{j.documentElement.doScroll("left")}catch(X){setTimeout(arguments.callee,0);return}f()})()}}if(M.wk){(function(){if(J){return}if(!/loaded|complete/.test(j.readyState)){setTimeout(arguments.callee,0);return}f()})()}s(f)}}();function f(){if(J){return}try{var Z=j.getElementsByTagName("body")[0].appendChild(C("span"));Z.parentNode.removeChild(Z)}catch(aa){return}J=true;var X=U.length;for(var Y=0;Y<X;Y++){U[Y]()}}function K(X){if(J){X()}else{U[U.length]=X}}function s(Y){if(typeof O.addEventListener!=D){O.addEventListener("load",Y,false)}else{if(typeof j.addEventListener!=D){j.addEventListener("load",Y,false)}else{if(typeof O.attachEvent!=D){i(O,"onload",Y)}else{if(typeof O.onload=="function"){var X=O.onload;O.onload=function(){X();Y()}}else{O.onload=Y}}}}}function h(){if(T){V()}else{H()}}function V(){var X=j.getElementsByTagName("body")[0];var aa=C(r);aa.setAttribute("type",q);var Z=X.appendChild(aa);if(Z){var Y=0;(function(){if(typeof Z.GetVariable!=D){var ab=Z.GetVariable("$version");if(ab){ab=ab.split(" ")[1].split(",");M.pv=[parseInt(ab[0],10),parseInt(ab[1],10),parseInt(ab[2],10)]}}else{if(Y<10){Y++;setTimeout(arguments.callee,10);return}}X.removeChild(aa);Z=null;H()})()}else{H()}}function H(){var ag=o.length;if(ag>0){for(var af=0;af<ag;af++){var Y=o[af].id;var ab=o[af].callbackFn;var aa={success:false,id:Y};if(M.pv[0]>0){var ae=c(Y);if(ae){if(F(o[af].swfVersion)&&!(M.wk&&M.wk<312)){w(Y,true);if(ab){aa.success=true;aa.ref=z(Y);ab(aa)}}else{if(o[af].expressInstall&&A()){var ai={};ai.data=o[af].expressInstall;ai.width=ae.getAttribute("width")||"0";ai.height=ae.getAttribute("height")||"0";if(ae.getAttribute("class")){ai.styleclass=ae.getAttribute("class")}if(ae.getAttribute("align")){ai.align=ae.getAttribute("align")}var ah={};var X=ae.getElementsByTagName("param");var ac=X.length;for(var ad=0;ad<ac;ad++){if(X[ad].getAttribute("name").toLowerCase()!="movie"){ah[X[ad].getAttribute("name")]=X[ad].getAttribute("value")}}P(ai,ah,Y,ab)}else{p(ae);if(ab){ab(aa)}}}}}else{w(Y,true);if(ab){var Z=z(Y);if(Z&&typeof Z.SetVariable!=D){aa.success=true;aa.ref=Z}ab(aa)}}}}}function z(aa){var X=null;var Y=c(aa);if(Y&&Y.nodeName=="OBJECT"){if(typeof Y.SetVariable!=D){X=Y}else{var Z=Y.getElementsByTagName(r)[0];if(Z){X=Z}}}return X}function A(){return !a&&F("6.0.65")&&(M.win||M.mac)&&!(M.wk&&M.wk<312)}function P(aa,ab,X
}
// Copyright: Hiroshi Ichikawa <http://gimite.net/en/>
// License: New BSD License
// Reference: http://dev.w3.org/html5/websockets/
// Reference: http://tools.ietf.org/html/draft-hixie-thewebsocketprotocol

(function() {
  
  if ('undefined' == typeof window || window.WebSocket) return;

  var console = window.console;
  if (!console || !console.log || !console.error) {
    console = {log: function(){ }, error: function(){ }};
  }
  
  if (!swfobject.hasFlashPlayerVersion("10.0.0")) {
    console.error("Flash Player >= 10.0.0 is required.");
    return;
  }
  if (location.protocol == "file:") {
    console.error(
      "WARNING: web-socket-js doesn't work in file:///... URL " +
      "unless you set Flash Security Settings properly. " +
      "Open the page via Web server i.e. http://...");
  }

  /**
   * This class represents a faux web socket.
   * @param {string} url
   * @param {array or string} protocols
   * @param {string} proxyHost
   * @param {int} proxyPort
   * @param {string} headers
   */
  WebSocket = function(url, protocols, proxyHost, proxyPort, headers) {
    var self = this;
    self.__id = WebSocket.__nextId++;
    WebSocket.__instances[self.__id] = self;
    self.readyState = WebSocket.CONNECTING;
    self.bufferedAmount = 0;
    self.__events = {};
    if (!protocols) {
      protocols = [];
    } else if (typeof protocols == "string") {
      protocols = [protocols];
    }
    // Uses setTimeout() to make sure __createFlash() runs after the caller sets ws.onopen etc.
    // Otherwise, when onopen fires immediately, onopen is called before it is set.
    setTimeout(function() {
      WebSocket.__addTask(function() {
        WebSocket.__flash.create(
            self.__id, url, protocols, proxyHost || null, proxyPort || 0, headers || null);
      });
    }, 0);
  };

  /**
   * Send data to the web socket.
   * @param {string} data  The data to send to the socket.
   * @return {boolean}  True for success, false for failure.
   */
  WebSocket.prototype.send = function(data) {
    if (this.readyState == WebSocket.CONNECTING) {
      throw "INVALID_STATE_ERR: Web Socket connection has not been established";
    }
    // We use encodeURIComponent() here, because FABridge doesn't work if
    // the argument includes some characters. We don't use escape() here
    // because of this:
    // https://developer.mozilla.org/en/Core_JavaScript_1.5_Guide/Functions#escape_and_unescape_Functions
    // But it looks decodeURIComponent(encodeURIComponent(s)) doesn't
    // preserve all Unicode characters either e.g. "\uffff" in Firefox.
    // Note by wtritch: Hopefully this will not be necessary using ExternalInterface.  Will require
    // additional testing.
    var result = WebSocket.__flash.send(this.__id, encodeURIComponent(data));
    if (result < 0) { // success
      return true;
    } else {
      this.bufferedAmount += result;
      return false;
    }
  };

  /**
   * Close this web socket gracefully.
   */
  WebSocket.prototype.close = function() {
    if (this.readyState == WebSocket.CLOSED || this.readyState == WebSocket.CLOSING) {
      return;
    }
    this.readyState = WebSocket.CLOSING;
    WebSocket.__flash.close(this.__id);
  };

  /**
   * Implementation of {@link <a href="http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-registration">DOM 2 EventTarget Interface</a>}
   *
   * @param {string} type
   * @param {function} listener
   * @param {boolean} useCapture
   * @return void
   */
  WebSocket.prototype.addEventListener = function(type, listener, useCapture) {
    if (!(type in this.__events)) {
      this.__events[type] = [];
    }
    this.__events[type].push(listener);
  };

  /**
   * Implementation of {@link <a href="http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-registration">DOM 2 EventTarget Interface</a>}
   *
   * @param {string} type
   * @param {function} listener
   * @param {boolean} useCapture
   * @return void
   */
  WebSocket.prototype.removeEventListener = function(type, listener, useCapture) {
    if (!(type in this.__events)) return;
    var events = this.__events[type];
    for (var i = events.length - 1; i >= 0; --i) {
      if (events[i] === listener) {
        events.splice(i, 1);
        break;
      }
    }
  };

  /**
   * Implementation of {@link <a href="http://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-registration">DOM 2 EventTarget Interface</a>}
   *
   * @param {Event} event
   * @return void
   */
  WebSocket.prototype.dispatchEvent = function(event) {
    var events = this.__events[event.type] || [];
    for (var i = 0; i < events.length; ++i) {
      events[i](event);
    }
    var handler = this["on" + event.type];
    if (handler) handler(event);
  };

  /**
   * Handles an event from Flash.
   * @param {Object} flashEvent
   */
  WebSocket.prototype.__handleEvent = function(flashEvent) {
    if ("readyState" in flashEvent) {
      this.readyState = flashEvent.readyState;
    }
    if ("protocol" in flashEvent) {
      this.protocol = flashEvent.protocol;
    }
    
    var jsEvent;
    if (flashEvent.type == "open" || flashEvent.type == "error") {
      jsEvent = this.__createSimpleEvent(flashEvent.type);
    } else if (flashEvent.type == "close") {
      // TODO implement jsEvent.wasClean
      jsEvent = this.__createSimpleEvent("close");
    } else if (flashEvent.type == "message") {
      var data = decodeURIComponent(flashEvent.message);
      jsEvent = this.__createMessageEvent("message", data);
    } else {
      throw "unknown event type: " + flashEvent.type;
    }
    
    this.dispatchEvent(jsEvent);
  };
  
  WebSocket.prototype.__createSimpleEvent = function(type) {
    if (document.createEvent && window.Event) {
      var event = document.createEvent("Event");
      event.initEvent(type, false, false);
      return event;
    } else {
      return {type: type, bubbles: false, cancelable: false};
    }
  };
  
  WebSocket.prototype.__createMessageEvent = function(type, data) {
    if (document.createEvent && window.MessageEvent && !window.opera) {
      var event = document.createEvent("MessageEvent");
      event.initMessageEvent("message", false, false, data, null, null, window, null);
      return event;
    } else {
      // IE and Opera, the latter one truncates the data parameter after any 0x00 bytes.
      return {type: type, data: data, bubbles: false, cancelable: false};
    }
  };
  
  /**
   * Define the WebSocket readyState enumeration.
   */
  WebSocket.CONNECTING = 0;
  WebSocket.OPEN = 1;
  WebSocket.CLOSING = 2;
  WebSocket.CLOSED = 3;

  WebSocket.__flash = null;
  WebSocket.__instances = {};
  WebSocket.__tasks = [];
  WebSocket.__nextId = 0;
  
  /**
   * Load a new flash security policy file.
   * @param {string} url
   */
  WebSocket.loadFlashPolicyFile = function(url){
    WebSocket.__addTask(function() {
      WebSocket.__flash.loadManualPolicyFile(url);
    });
  };

  /**
   * Loads WebSocketMain.swf and creates WebSocketMain object in Flash.
   */
  WebSocket.__initialize = function() {
    if (WebSocket.__flash) return;
    
    if (WebSocket.__swfLocation) {
      // For backword compatibility.
      window.WEB_SOCKET_SWF_LOCATION = WebSocket.__swfLocation;
    }
    if (!window.WEB_SOCKET_SWF_LOCATION) {
      console.error("[WebSocket] set WEB_SOCKET_SWF_LOCATION to location of WebSocketMain.swf");
      return;
    }
    var container = document.createElement("div");
    container.id = "webSocketContainer";
    // Hides Flash box. We cannot use display: none or visibility: hidden because it prevents
    // Flash from loading at least in IE. So we move it out of the screen at (-100, -100).
    // But this even doesn't work with Flash Lite (e.g. in Droid Incredible). So with Flash
    // Lite, we put it at (0, 0). This shows 1x1 box visible at left-top corner but this is
    // the best we can do as far as we know now.
    container.style.position = "absolute";
    if (WebSocket.__isFlashLite()) {
      container.style.left = "0px";
      container.style.top = "0px";
    } else {
      container.style.left = "-100px";
      container.style.top = "-100px";
    }
    var holder = document.createElement("div");
    holder.id = "webSocketFlash";
    container.appendChild(holder);
    document.body.appendChild(container);
    // See this article for hasPriority:
    // http://help.adobe.com/en_US/as3/mobile/WS4bebcd66a74275c36cfb8137124318eebc6-7ffd.html
    swfobject.embedSWF(
      WEB_SOCKET_SWF_LOCATION,
      "webSocketFlash",
      "1" /* width */,
      "1" /* height */,
      "10.0.0" /* SWF version */,
      null,
      null,
      {hasPriority: true, swliveconnect : true, allowScriptAccess: "always"},
      null,
      function(e) {
        if (!e.success) {
          console.error("[WebSocket] swfobject.embedSWF failed");
        }
      });
  };
  
  /**
   * Called by Flash to notify JS that it's fully loaded and ready
   * for communication.
   */
  WebSocket.__onFlashInitialized = function() {
    // We need to set a timeout here to avoid round-trip calls
    // to flash during the initialization process.
    setTimeout(function() {
      WebSocket.__flash = document.getElementById("webSocketFlash");
      WebSocket.__flash.setCallerUrl(location.href);
      WebSocket.__flash.setDebug(!!window.WEB_SOCKET_DEBUG);
      for (var i = 0; i < WebSocket.__tasks.length; ++i) {
        WebSocket.__tasks[i]();
      }
      WebSocket.__tasks = [];
    }, 0);
  };
  
  /**
   * Called by Flash to notify WebSockets events are fired.
   */
  WebSocket.__onFlashEvent = function() {
    setTimeout(function() {
      try {
        // Gets events using receiveEvents() instead of getting it from event object
        // of Flash event. This is to make sure to keep message order.
        // It seems sometimes Flash events don't arrive in the same order as they are sent.
        var events = WebSocket.__flash.receiveEvents();
        for (var i = 0; i < events.length; ++i) {
          WebSocket.__instances[events[i].webSocketId].__handleEvent(events[i]);
        }
      } catch (e) {
        console.error(e);
      }
    }, 0);
    return true;
  };
  
  // Called by Flash.
  WebSocket.__log = function(message) {
    console.log(decodeURIComponent(message));
  };
  
  // Called by Flash.
  WebSocket.__error = function(message) {
    console.error(decodeURIComponent(message));
  };
  
  WebSocket.__addTask = function(task) {
    if (WebSocket.__flash) {
      task();
    } else {
      WebSocket.__tasks.push(task);
    }
  };
  
  /**
   * Test if the browser is running flash lite.
   * @return {boolean} True if flash lite is running, false otherwise.
   */
  WebSocket.__isFlashLite = function() {
    if (!window.navigator || !window.navigator.mimeTypes) {
      return false;
    }
    var mimeType = window.navigator.mimeTypes["application/x-shockwave-flash"];
    if (!mimeType || !mimeType.enabledPlugin || !mimeType.enabledPlugin.filename) {
      return false;
    }
    return mimeType.enabledPlugin.filename.match(/flashlite/i) ? true : false;
  };
  
  if (!window.WEB_SOCKET_DISABLE_AUTO_INITIALIZATION) {
    if (window.addEventListener) {
      window.addEventListener("load", function(){
        WebSocket.__initialize();
      }, false);
    } else {
      window.attachEvent("onload", function(){
        WebSocket.__initialize();
      });
    }
  }
  
})();

/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, io, global) {

  /**
   * Expose constructor.
   *
   * @api public
   */

  exports.XHR = XHR;

  /**
   * XHR constructor
   *
   * @costructor
   * @api public
   */

  function XHR (socket) {
    if (!socket) return;

    io.Transport.apply(this, arguments);
    this.sendBuffer = [];
  };

  /**
   * Inherits from Transport.
   */

  io.util.inherit(XHR, io.Transport);

  /**
   * Establish a connection
   *
   * @returns {Transport}
   * @api public
   */

  XHR.prototype.open = function () {
    this.socket.setBuffer(false);
    this.onOpen();
    this.get();

    // we need to make sure the request succeeds since we have no indication
    // whether the request opened or not until it succeeded.
    this.setCloseTimeout();

    return this;
  };

  /**
   * Check if we need to send data to the Socket.IO server, if we have data in our
   * buffer we encode it and forward it to the `post` method.
   *
   * @api private
   */

  XHR.prototype.payload = function (payload) {
    var msgs = [];

    for (var i = 0, l = payload.length; i < l; i++) {
      msgs.push(io.parser.encodePacket(payload[i]));
    }

    this.send(io.parser.encodePayload(msgs));
  };

  /**
   * Send data to the Socket.IO server.
   *
   * @param data The message
   * @returns {Transport}
   * @api public
   */

  XHR.prototype.send = function (data) {
    this.post(data);
    return this;
  };

  /**
   * Posts a encoded message to the Socket.IO server.
   *
   * @param {String} data A encoded message.
   * @api private
   */

  function empty () { };

  XHR.prototype.post = function (data) {
    var self = this;
    this.socket.setBuffer(true);

    function stateChange () {
      if (this.readyState == 4) {
        this.onreadystatechange = empty;
        self.posting = false;

        if (this.status == 200){
          self.socket.setBuffer(false);
        } else {
          self.onClose();
        }
      }
    }

    function onload () {
      this.onload = empty;
      self.socket.setBuffer(false);
    };

    this.sendXHR = this.request('POST');

    if (global.XDomainRequest && this.sendXHR instanceof XDomainRequest) {
      this.sendXHR.onload = this.sendXHR.onerror = onload;
    } else {
      this.sendXHR.onreadystatechange = stateChange;
    }

    this.sendXHR.send(data);
  };

  /**
   * Disconnects the established `XHR` connection.
   *
   * @returns {Transport}
   * @api public
   */

  XHR.prototype.close = function () {
    this.onClose();
    return this;
  };

  /**
   * Generates a configured XHR request
   *
   * @param {String} url The url that needs to be requested.
   * @param {String} method The method the request should use.
   * @returns {XMLHttpRequest}
   * @api private
   */

  XHR.prototype.request = function (method) {
    var req = io.util.request(this.socket.isXDomain())
      , query = io.util.query(this.socket.options.query, 't=' + +new Date);

    req.open(method || 'GET', this.prepareUrl() + query, true);

    if (method == 'POST') {
      try {
        if (req.setRequestHeader) {
          req.setRequestHeader('Content-type', 'text/plain;charset=UTF-8');
        } else {
          // XDomainRequest
          req.contentType = 'text/plain';
        }
      } catch (e) {}
    }

    return req;
  };

  /**
   * Returns the scheme to use for the transport URLs.
   *
   * @api private
   */

  XHR.prototype.scheme = function () {
    return this.socket.options.secure ? 'https' : 'http';
  };

  /**
   * Check if the XHR transports are supported
   *
   * @param {Boolean} xdomain Check if we support cross domain requests.
   * @returns {Boolean}
   * @api public
   */

  XHR.check = function (socket, xdomain) {
    try {
      var request = io.util.request(xdomain),
          usesXDomReq = (global.XDomainRequest && request instanceof XDomainRequest),
          socketProtocol = (socket && socket.options && socket.options.secure ? 'https:' : 'http:'),
          isXProtocol = (global.location && socketProtocol != global.location.protocol);
      if (request && !(usesXDomReq && isXProtocol)) {
        return true;
      }
    } catch(e) {}

    return false;
  };

  /**
   * Check if the XHR transport supports cross domain requests.
   *
   * @returns {Boolean}
   * @api public
   */

  XHR.xdomainCheck = function (socket) {
    return XHR.check(socket, true);
  };

})(
    'undefined' != typeof io ? io.Transport : module.exports
  , 'undefined' != typeof io ? io : module.parent.exports
  , this
);
/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, io) {

  /**
   * Expose constructor.
   */

  exports.htmlfile = HTMLFile;

  /**
   * The HTMLFile transport creates a `forever iframe` based transport
   * for Internet Explorer. Regular forever iframe implementations will 
   * continuously trigger the browsers buzy indicators. If the forever iframe
   * is created inside a `htmlfile` these indicators will not be trigged.
   *
   * @constructor
   * @extends {io.Transport.XHR}
   * @api public
   */

  function HTMLFile (socket) {
    io.Transport.XHR.apply(this, arguments);
  };

  /**
   * Inherits from XHR transport.
   */

  io.util.inherit(HTMLFile, io.Transport.XHR);

  /**
   * Transport name
   *
   * @api public
   */

  HTMLFile.prototype.name = 'htmlfile';

  /**
   * Creates a new Ac...eX `htmlfile` with a forever loading iframe
   * that can be used to listen to messages. Inside the generated
   * `htmlfile` a reference will be made to the HTMLFile transport.
   *
   * @api private
   */

  HTMLFile.prototype.get = function () {
    this.doc = new window[(['Active'].concat('Object').join('X'))]('htmlfile');
    this.doc.open();
    this.doc.write('<html></html>');
    this.doc.close();
    this.doc.parentWindow.s = this;

    var iframeC = this.doc.createElement('div');
    iframeC.className = 'socketio';

    this.doc.body.appendChild(iframeC);
    this.iframe = this.doc.createElement('iframe');

    iframeC.appendChild(this.iframe);

    var self = this
      , query = io.util.query(this.socket.options.query, 't='+ +new Date);

    this.iframe.src = this.prepareUrl() + query;

    io.util.on(window, 'unload', function () {
      self.destroy();
    });
  };

  /**
   * The Socket.IO server will write script tags inside the forever
   * iframe, this function will be used as callback for the incoming
   * information.
   *
   * @param {String} data The message
   * @param {document} doc Reference to the context
   * @api private
   */

  HTMLFile.prototype._ = function (data, doc) {
    // unescape all forward slashes. see GH-1251
    data = data.replace(/\\\//g, '/');
    this.onData(data);
    try {
      var script = doc.getElementsByTagName('script')[0];
      script.parentNode.removeChild(script);
    } catch (e) { }
  };

  /**
   * Destroy the established connection, iframe and `htmlfile`.
   * And calls the `CollectGarbage` function of Internet Explorer
   * to release the memory.
   *
   * @api private
   */

  HTMLFile.prototype.destroy = function () {
    if (this.iframe){
      try {
        this.iframe.src = 'about:blank';
      } catch(e){}

      this.doc = null;
      this.iframe.parentNode.removeChild(this.iframe);
      this.iframe = null;

      CollectGarbage();
    }
  };

  /**
   * Disconnects the established connection.
   *
   * @returns {Transport} Chaining.
   * @api public
   */

  HTMLFile.prototype.close = function () {
    this.destroy();
    return io.Transport.XHR.prototype.close.call(this);
  };

  /**
   * Checks if the browser supports this transport. The browser
   * must have an `Ac...eXObject` implementation.
   *
   * @return {Boolean}
   * @api public
   */

  HTMLFile.check = function (socket) {
    if (typeof window != "undefined" && (['Active'].concat('Object').join('X')) in window){
      try {
        var a = new window[(['Active'].concat('Object').join('X'))]('htmlfile');
        return a && io.Transport.XHR.check(socket);
      } catch(e){}
    }
    return false;
  };

  /**
   * Check if cross domain requests are supported.
   *
   * @returns {Boolean}
   * @api public
   */

  HTMLFile.xdomainCheck = function () {
    // we can probably do handling for sub-domains, we should
    // test that it's cross domain but a subdomain here
    return false;
  };

  /**
   * Add the transport to your public io.transports array.
   *
   * @api private
   */

  io.transports.push('htmlfile');

})(
    'undefined' != typeof io ? io.Transport : module.exports
  , 'undefined' != typeof io ? io : module.parent.exports
);

/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, io, global) {

  /**
   * Expose constructor.
   */

  exports['xhr-polling'] = XHRPolling;

  /**
   * The XHR-polling transport uses long polling XHR requests to create a
   * "persistent" connection with the server.
   *
   * @constructor
   * @api public
   */

  function XHRPolling () {
    io.Transport.XHR.apply(this, arguments);
  };

  /**
   * Inherits from XHR transport.
   */

  io.util.inherit(XHRPolling, io.Transport.XHR);

  /**
   * Merge the properties from XHR transport
   */

  io.util.merge(XHRPolling, io.Transport.XHR);

  /**
   * Transport name
   *
   * @api public
   */

  XHRPolling.prototype.name = 'xhr-polling';

  /**
   * Indicates whether heartbeats is enabled for this transport
   *
   * @api private
   */

  XHRPolling.prototype.heartbeats = function () {
    return false;
  };

  /** 
   * Establish a connection, for iPhone and Android this will be done once the page
   * is loaded.
   *
   * @returns {Transport} Chaining.
   * @api public
   */

  XHRPolling.prototype.open = function () {
    var self = this;

    io.Transport.XHR.prototype.open.call(self);
    return false;
  };

  /**
   * Starts a XHR request to wait for incoming messages.
   *
   * @api private
   */

  function empty () {};

  XHRPolling.prototype.get = function () {
    if (!this.isOpen) return;

    var self = this;

    function stateChange () {
      if (this.readyState == 4) {
        this.onreadystatechange = empty;

        if (this.status == 200) {
          self.onData(this.responseText);
          self.get();
        } else {
          self.onClose();
        }
      }
    };

    function onload () {
      this.onload = empty;
      this.onerror = empty;
      self.retryCounter = 1;
      self.onData(this.responseText);
      self.get();
    };

    function onerror () {
      self.retryCounter ++;
      if(!self.retryCounter || self.retryCounter > 3) {
        self.onClose();  
      } else {
        self.get();
      }
    };

    this.xhr = this.request();

    if (global.XDomainRequest && this.xhr instanceof XDomainRequest) {
      this.xhr.onload = onload;
      this.xhr.onerror = onerror;
    } else {
      this.xhr.onreadystatechange = stateChange;
    }

    this.xhr.send(null);
  };

  /**
   * Handle the unclean close behavior.
   *
   * @api private
   */

  XHRPolling.prototype.onClose = function () {
    io.Transport.XHR.prototype.onClose.call(this);

    if (this.xhr) {
      this.xhr.onreadystatechange = this.xhr.onload = this.xhr.onerror = empty;
      try {
        this.xhr.abort();
      } catch(e){}
      this.xhr = null;
    }
  };

  /**
   * Webkit based browsers show a infinit spinner when you start a XHR request
   * before the browsers onload event is called so we need to defer opening of
   * the transport until the onload event is called. Wrapping the cb in our
   * defer method solve this.
   *
   * @param {Socket} socket The socket instance that needs a transport
   * @param {Function} fn The callback
   * @api private
   */

  XHRPolling.prototype.ready = function (socket, fn) {
    var self = this;

    io.util.defer(function () {
      fn.call(self);
    });
  };

  /**
   * Add the transport to your public io.transports array.
   *
   * @api private
   */

  io.transports.push('xhr-polling');

})(
    'undefined' != typeof io ? io.Transport : module.exports
  , 'undefined' != typeof io ? io : module.parent.exports
  , this
);

/**
 * socket.io
 * Copyright(c) 2011 LearnBoost <dev@learnboost.com>
 * MIT Licensed
 */

(function (exports, io, global) {
  /**
   * There is a way to hide the loading indicator in Firefox. If you create and
   * remove a iframe it will stop showing the current loading indicator.
   * Unfortunately we can't feature detect that and UA sniffing is evil.
   *
   * @api private
   */

  var indicator = global.document && "MozAppearance" in
    global.document.documentElement.style;

  /**
   * Expose constructor.
   */

  exports['jsonp-polling'] = JSONPPolling;

  /**
   * The JSONP transport creates an persistent connection by dynamically
   * inserting a script tag in the page. This script tag will receive the
   * information of the Socket.IO server. When new information is received
   * it creates a new script tag for the new data stream.
   *
   * @constructor
   * @extends {io.Transport.xhr-polling}
   * @api public
   */

  function JSONPPolling (socket) {
    io.Transport['xhr-polling'].apply(this, arguments);

    this.index = io.j.length;

    var self = this;

    io.j.push(function (msg) {
      self._(msg);
    });
  };

  /**
   * Inherits from XHR polling transport.
   */

  io.util.inherit(JSONPPolling, io.Transport['xhr-polling']);

  /**
   * Transport name
   *
   * @api public
   */

  JSONPPolling.prototype.name = 'jsonp-polling';

  /**
   * Posts a encoded message to the Socket.IO server using an iframe.
   * The iframe is used because script tags can create POST based requests.
   * The iframe is positioned outside of the view so the user does not
   * notice it's existence.
   *
   * @param {String} data A encoded message.
   * @api private
   */

  JSONPPolling.prototype.post = function (data) {
    var self = this
      , query = io.util.query(
             this.socket.options.query
          , 't='+ (+new Date) + '&i=' + this.index
        );

    if (!this.form) {
      var form = document.createElement('form')
        , area = document.createElement('textarea')
        , id = this.iframeId = 'socketio_iframe_' + this.index
        , iframe;

      form.className = 'socketio';
      form.style.position = 'absolute';
      form.style.top = '0px';
      form.style.left = '0px';
      form.style.display = 'none';
      form.target = id;
      form.method = 'POST';
      form.setAttribute('accept-charset', 'utf-8');
      area.name = 'd';
      form.appendChild(area);
      document.body.appendChild(form);

      this.form = form;
      this.area = area;
    }

    this.form.action = this.prepareUrl() + query;

    function complete () {
      initIframe();
      self.socket.setBuffer(false);
    };

    function initIframe () {
      if (self.iframe) {
        self.form.removeChild(self.iframe);
      }

      try {
        // ie6 dynamic iframes with target="" support (thanks Chris Lambacher)
        iframe = document.createElement('<iframe name="'+ self.iframeId +'">');
      } catch (e) {
        iframe = document.createElement('iframe');
        iframe.name = self.iframeId;
      }

      iframe.id = self.iframeId;

      self.form.appendChild(iframe);
      self.iframe = iframe;
    };

    initIframe();

    // we temporarily stringify until we figure out how to prevent
    // browsers from turning `\n` into `\r\n` in form inputs
    this.area.value = io.JSON.stringify(data);

    try {
      this.form.submit();
    } catch(e) {}

    if (this.iframe.attachEvent) {
      iframe.onreadystatechange = function () {
        if (self.iframe.readyState == 'complete') {
          complete();
        }
      };
    } else {
      this.iframe.onload = complete;
    }

    this.socket.setBuffer(true);
  };

  /**
   * Creates a new JSONP poll that can be used to listen
   * for messages from the Socket.IO server.
   *
   * @api private
   */

  JSONPPolling.prototype.get = function () {
    var self = this
      , script = document.createElement('script')
      , query = io.util.query(
             this.socket.options.query
          , 't='+ (+new Date) + '&i=' + this.index
        );

    if (this.script) {
      this.script.parentNode.removeChild(this.script);
      this.script = null;
    }

    script.async = true;
    script.src = this.prepareUrl() + query;
    script.onerror = function () {
      self.onClose();
    };

    var insertAt = document.getElementsByTagName('script')[0];
    insertAt.parentNode.insertBefore(script, insertAt);
    this.script = script;

    if (indicator) {
      setTimeout(function () {
        var iframe = document.createElement('iframe');
        document.body.appendChild(iframe);
        document.body.removeChild(iframe);
      }, 100);
    }
  };

  /**
   * Callback function for the incoming message stream from the Socket.IO server.
   *
   * @param {String} data The message
   * @api private
   */

  JSONPPolling.prototype._ = function (msg) {
    this.onData(msg);
    if (this.isOpen) {
      this.get();
    }
    return this;
  };

  /**
   * The indicator hack only works after onload
   *
   * @param {Socket} socket The socket instance that needs a transport
   * @param {Function} fn The callback
   * @api private
   */

  JSONPPolling.prototype.ready = function (socket, fn) {
    var self = this;
    if (!indicator) return fn.call(this);

    io.util.load(function () {
      fn.call(self);
    });
  };

  /**
   * Checks if browser supports this transport.
   *
   * @return {Boolean}
   * @api public
   */

  JSONPPolling.check = function () {
    return 'document' in global;
  };

  /**
   * Check if cross domain requests are supported
   *
   * @returns {Boolean}
   * @api public
   */

  JSONPPolling.xdomainCheck = function () {
    return true;
  };

  /**
   * Add the transport to your public io.transports array.
   *
   * @api private
   */

  io.transports.push('jsonp-polling');

})(
    'undefined' != typeof io ? io.Transport : module.exports
  , 'undefined' != typeof io ? io : module.parent.exports
  , this
);

if (typeof define === "function" && define.amd) {
  define([], function () { return io; });
}
})();
},{}],13:[function(require,module,exports){
// shim for using process in browser

var process = module.exports = {};

process.nextTick = (function () {
    var canSetImmediate = typeof window !== 'undefined'
    && window.setImmediate;
    var canPost = typeof window !== 'undefined'
    && window.postMessage && window.addEventListener
    ;

    if (canSetImmediate) {
        return function (f) { return window.setImmediate(f) };
    }

    if (canPost) {
        var queue = [];
        window.addEventListener('message', function (ev) {
            var source = ev.source;
            if ((source === window || source === null) && ev.data === 'process-tick') {
                ev.stopPropagation();
                if (queue.length > 0) {
                    var fn = queue.shift();
                    fn();
                }
            }
        }, true);

        return function nextTick(fn) {
            queue.push(fn);
            window.postMessage('process-tick', '*');
        };
    }

    return function nextTick(fn) {
        setTimeout(fn, 0);
    };
})();

process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];

process.binding = function (name) {
    throw new Error('process.binding is not supported');
}

// TODO(shtylman)
process.cwd = function () { return '/' };
process.chdir = function (dir) {
    throw new Error('process.chdir is not supported');
};

},{}],12:[function(require,module,exports){
var process=require("__browserify_process");if (!process.EventEmitter) process.EventEmitter = function () {};

var EventEmitter = exports.EventEmitter = process.EventEmitter;
var isArray = typeof Array.isArray === 'function'
    ? Array.isArray
    : function (xs) {
        return Object.prototype.toString.call(xs) === '[object Array]'
    }
;
function indexOf (xs, x) {
    if (xs.indexOf) return xs.indexOf(x);
    for (var i = 0; i < xs.length; i++) {
        if (x === xs[i]) return i;
    }
    return -1;
}

// By default EventEmitters will print a warning if more than
// 10 listeners are added to it. This is a useful default which
// helps finding memory leaks.
//
// Obviously not all Emitters should be limited to 10. This function allows
// that to be increased. Set to zero for unlimited.
var defaultMaxListeners = 10;
EventEmitter.prototype.setMaxListeners = function(n) {
  if (!this._events) this._events = {};
  this._events.maxListeners = n;
};


EventEmitter.prototype.emit = function(type) {
  // If there is no 'error' event listener then throw.
  if (type === 'error') {
    if (!this._events || !this._events.error ||
        (isArray(this._events.error) && !this._events.error.length))
    {
      if (arguments[1] instanceof Error) {
        throw arguments[1]; // Unhandled 'error' event
      } else {
        throw new Error("Uncaught, unspecified 'error' event.");
      }
      return false;
    }
  }

  if (!this._events) return false;
  var handler = this._events[type];
  if (!handler) return false;

  if (typeof handler == 'function') {
    switch (arguments.length) {
      // fast cases
      case 1:
        handler.call(this);
        break;
      case 2:
        handler.call(this, arguments[1]);
        break;
      case 3:
        handler.call(this, arguments[1], arguments[2]);
        break;
      // slower
      default:
        var args = Array.prototype.slice.call(arguments, 1);
        handler.apply(this, args);
    }
    return true;

  } else if (isArray(handler)) {
    var args = Array.prototype.slice.call(arguments, 1);

    var listeners = handler.slice();
    for (var i = 0, l = listeners.length; i < l; i++) {
      listeners[i].apply(this, args);
    }
    return true;

  } else {
    return false;
  }
};

// EventEmitter is defined in src/node_events.cc
// EventEmitter.prototype.emit() is also defined there.
EventEmitter.prototype.addListener = function(type, listener) {
  if ('function' !== typeof listener) {
    throw new Error('addListener only takes instances of Function');
  }

  if (!this._events) this._events = {};

  // To avoid recursion in the case that type == "newListeners"! Before
  // adding it to the listeners, first emit "newListeners".
  this.emit('newListener', type, listener);

  if (!this._events[type]) {
    // Optimize the case of one listener. Don't need the extra array object.
    this._events[type] = listener;
  } else if (isArray(this._events[type])) {

    // Check for listener leak
    if (!this._events[type].warned) {
      var m;
      if (this._events.maxListeners !== undefined) {
        m = this._events.maxListeners;
      } else {
        m = defaultMaxListeners;
      }

      if (m && m > 0 && this._events[type].length > m) {
        this._events[type].warned = true;
        console.error('(node) warning: possible EventEmitter memory ' +
                      'leak detected. %d listeners added. ' +
                      'Use emitter.setMaxListeners() to increase limit.',
                      this._events[type].length);
        console.trace();
      }
    }

    // If we've already got an array, just append.
    this._events[type].push(listener);
  } else {
    // Adding the second element, need to change to array.
    this._events[type] = [this._events[type], listener];
  }

  return this;
};

EventEmitter.prototype.on = EventEmitter.prototype.addListener;

EventEmitter.prototype.once = function(type, listener) {
  var self = this;
  self.on(type, function g() {
    self.removeListener(type, g);
    listener.apply(this, arguments);
  });

  return this;
};

EventEmitter.prototype.removeListener = function(type, listener) {
  if ('function' !== typeof listener) {
    throw new Error('removeListener only takes instances of Function');
  }

  // does not use listeners(), so no side effect of creating _events[type]
  if (!this._events || !this._events[type]) return this;

  var list = this._events[type];

  if (isArray(list)) {
    var i = indexOf(list, listener);
    if (i < 0) return this;
    list.splice(i, 1);
    if (list.length == 0)
      delete this._events[type];
  } else if (this._events[type] === listener) {
    delete this._events[type];
  }

  return this;
};

EventEmitter.prototype.removeAllListeners = function(type) {
  if (arguments.length === 0) {
    this._events = {};
    return this;
  }

  // does not use listeners(), so no side effect of creating _events[type]
  if (type && this._events && this._events[type]) this._events[type] = null;
  return this;
};

EventEmitter.prototype.listeners = function(type) {
  if (!this._events) this._events = {};
  if (!this._events[type]) this._events[type] = [];
  if (!isArray(this._events[type])) {
    this._events[type] = [this._events[type]];
  }
  return this._events[type];
};

EventEmitter.listenerCount = function(emitter, type) {
  var ret;
  if (!emitter._events || !emitter._events[type])
    ret = 0;
  else if (typeof emitter._events[type] === 'function')
    ret = 1;
  else
    ret = emitter._events[type].length;
  return ret;
};

},{"__browserify_process":13}],9:[function(require,module,exports){
var util = require('util');
var webrtc = require('webrtcsupport');
var PeerConnection = require('rtcpeerconnection');
var WildEmitter = require('wildemitter');
var FileTransfer = require('filetransfer');

// the inband-v1 protocol is sending metadata inband in a serialized JSON object
// followed by the actual data. Receiver closes the datachannel upon completion
var INBAND_FILETRANSFER_V1 = 'https://simplewebrtc.com/protocol/filetransfer#inband-v1';

function Peer(options) {
    var self = this;

    // call emitter constructor
    WildEmitter.call(this);

    this.id = options.id;
    this.parent = options.parent;
    this.type = options.type || 'video';
    this.oneway = options.oneway || false;
    this.sharemyscreen = options.sharemyscreen || false;
    this.browserPrefix = options.prefix;
    this.stream = options.stream;
    this.enableDataChannels = options.enableDataChannels === undefined ? this.parent.config.enableDataChannels : options.enableDataChannels;
    this.receiveMedia = options.receiveMedia || this.parent.config.receiveMedia;
    this.channels = {};
    this.sid = options.sid || Date.now().toString();
    // Create an RTCPeerConnection via the polyfill
    this.pc = new PeerConnection(this.parent.config.peerConnectionConfig, this.parent.config.peerConnectionConstraints);
    this.pc.on('ice', this.onIceCandidate.bind(this));
    this.pc.on('offer', function (offer) {
        if (self.parent.config.nick) offer.nick = self.parent.config.nick;
        self.send('offer', offer);
    });
    this.pc.on('answer', function (answer) {
        if (self.parent.config.nick) answer.nick = self.parent.config.nick;
        self.send('answer', answer);
    });
    this.pc.on('addStream', this.handleRemoteStreamAdded.bind(this));
    this.pc.on('addChannel', this.handleDataChannelAdded.bind(this));
    this.pc.on('removeStream', this.handleStreamRemoved.bind(this));
    // Just fire negotiation needed events for now
    // When browser re-negotiation handling seems to work
    // we can use this as the trigger for starting the offer/answer process
    // automatically. We'll just leave it be for now while this stabalizes.
    this.pc.on('negotiationNeeded', this.emit.bind(this, 'negotiationNeeded'));
    this.pc.on('iceConnectionStateChange', this.emit.bind(this, 'iceConnectionStateChange'));
    this.pc.on('iceConnectionStateChange', function () {
        switch (self.pc.iceConnectionState) {
        case 'failed':
            // currently, in chrome only the initiator goes to failed
            // so we need to signal this to the peer
            if (self.pc.pc.peerconnection.localDescription.type === 'offer') {
                self.parent.emit('iceFailed', self);
                self.send('connectivityError');
            }
            break;
        }
    });
    this.pc.on('signalingStateChange', this.emit.bind(this, 'signalingStateChange'));
    this.logger = this.parent.logger;

    // handle screensharing/broadcast mode
    if (options.type === 'screen') {
        if (this.parent.localScreen && this.sharemyscreen) {
            this.logger.log('adding local screen stream to peer connection');
            this.pc.addStream(this.parent.localScreen);
            this.broadcaster = options.broadcaster;
        }
    } else {
        this.parent.localStreams.forEach(function (stream) {
            self.pc.addStream(stream);
        });
    }

    this.on('channelOpen', function (channel) {
        if (channel.protocol === INBAND_FILETRANSFER_V1) {
            channel.onmessage = function (event) {
                var metadata = JSON.parse(event.data);
                var receiver = new FileTransfer.Receiver();
                receiver.receive(metadata, channel);
                self.emit('fileTransfer', metadata, receiver);
                receiver.on('receivedFile', function (file, metadata) {
                    receiver.channel.close();
                });
            };
        }
    });

    // proxy events to parent
    this.on('*', function () {
        self.parent.emit.apply(self.parent, arguments);
    });
}

util.inherits(Peer, WildEmitter);

Peer.prototype.handleMessage = function (message) {
    var self = this;

    this.logger.log('getting', message.type, message);

    if (message.prefix) this.browserPrefix = message.prefix;

    if (message.type === 'offer') {
        if (!this.nick) this.nick = message.payload.nick;
        delete message.payload.nick;
        // workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=1064247
        message.payload.sdp = message.payload.sdp.replace('a=fmtp:0 profile-level-id=0x42e00c;packetization-mode=1\r\n', '');
        this.pc.handleOffer(message.payload, function (err) {
            if (err) {
                return;
            }
            // auto-accept
            self.pc.answer(self.receiveMedia, function (err, sessionDescription) {
                //self.send('answer', sessionDescription);
            });
        });
    } else if (message.type === 'answer') {
        if (!this.nick) this.nick = message.payload.nick;
        delete message.payload.nick;
        this.pc.handleAnswer(message.payload);
    } else if (message.type === 'candidate') {
        this.pc.processIce(message.payload);
    } else if (message.type === 'connectivityError') {
        this.parent.emit('connectivityError', self);
    } else if (message.type === 'mute') {
        this.parent.emit('mute', {id: message.from, name: message.payload.name});
    } else if (message.type === 'unmute') {
        this.parent.emit('unmute', {id: message.from, name: message.payload.name});
    } else {
        this.parent.emit(message.type, {id: message.from, payload: message.payload, roomType: message.roomType});
    }
};

// send via signalling channel
Peer.prototype.send = function (messageType, payload) {
    var message = {
        to: this.id,
        sid: this.sid,
        broadcaster: this.broadcaster,
        roomType: this.type,
        type: messageType,
        payload: payload,
        prefix: webrtc.prefix
    };
    this.logger.log('sending', messageType, message);
    this.parent.emit('message', message);
};

// send via data channel
// returns true when message was sent and false if channel is not open
Peer.prototype.sendDirectly = function (channel, messageType, payload) {
    var message = {
        type: messageType,
        payload: payload
    };
    this.logger.log('sending via datachannel', channel, messageType, message);
    var dc = this.getDataChannel(channel);
    if (dc.readyState != 'open') return false;
    dc.send(JSON.stringify(message));
    return true;
};

// Internal method registering handlers for a data channel and emitting events on the peer
Peer.prototype._observeDataChannel = function (channel) {
    var self = this;
    channel.onclose = this.emit.bind(this, 'channelClose', channel);
    channel.onerror = this.emit.bind(this, 'channelError', channel);
    channel.onmessage = function (event) {
        self.emit('channelMessage', self, channel.label, JSON.parse(event.data), channel, event);
    };
    channel.onopen = this.emit.bind(this, 'channelOpen', channel);
};

// Fetch or create a data channel by the given name
Peer.prototype.getDataChannel = function (name, opts) {
    if (!webrtc.supportDataChannel) return this.emit('error', new Error('createDataChannel not supported'));
    var channel = this.channels[name];
    opts || (opts = {});
    if (channel) return channel;
    // if we don't have one by this label, create it
    channel = this.channels[name] = this.pc.createDataChannel(name, opts);
    this._observeDataChannel(channel);
    return channel;
};

Peer.prototype.onIceCandidate = function (candidate) {
    if (this.closed) return;
    if (candidate) {
        var pcConfig = this.parent.config.peerConnectionConfig;
        if (webrtc.prefix === 'moz' && pcConfig && pcConfig.iceTransports &&
                candidate.candidate && candidate.candidate.candidate &&
                candidate.candidate.candidate.indexOf(pcConfig.iceTransports) < 0) {
            this.logger.log('Ignoring ice candidate not matching pcConfig iceTransports type: ', pcConfig.iceTransports);
        } else {
            this.send('candidate', candidate);
        }
    } else {
        this.logger.log("End of candidates.");
    }
};

Peer.prototype.start = function () {
    var self = this;

    // well, the webrtc api requires that we either
    // a) create a datachannel a priori
    // b) do a renegotiation later to add the SCTP m-line
    // Let's do (a) first...
    if (this.enableDataChannels) {
        this.getDataChannel('simplewebrtc');
    }

    this.pc.offer(this.receiveMedia, function (err, sessionDescription) {
        //self.send('offer', sessionDescription);
    });
};

Peer.prototype.icerestart = function () {
    var constraints = this.receiveMedia;
    constraints.mandatory.IceRestart = true;
    this.pc.offer(constraints, function (err, success) { });
};

Peer.prototype.end = function () {
    if (this.closed) return;
    this.pc.close();
    this.handleStreamRemoved();
};

Peer.prototype.handleRemoteStreamAdded = function (event) {
    var self = this;
    if (this.stream) {
        this.logger.warn('Already have a remote stream');
    } else {
        this.stream = event.stream;
        // FIXME: addEventListener('ended', ...) would be nicer
        // but does not work in firefox
        this.stream.onended = function () {
            self.end();
        };
        this.parent.emit('peerStreamAdded', this);
    }
};

Peer.prototype.handleStreamRemoved = function () {
    this.parent.peers.splice(this.parent.peers.indexOf(this), 1);
    this.closed = true;
    this.parent.emit('peerStreamRemoved', this);
};

Peer.prototype.handleDataChannelAdded = function (channel) {
    this.channels[channel.label] = channel;
    this._observeDataChannel(channel);
};

Peer.prototype.sendFile = function (file) {
    var sender = new FileTransfer.Sender();
    var dc = this.getDataChannel('filetransfer' + (new Date()).getTime(), {
        protocol: INBAND_FILETRANSFER_V1
    });
    // override onopen
    dc.onopen = function () {
        dc.send(JSON.stringify({
            size: file.size,
            name: file.name
        }));
        sender.send(file, dc);
    };
    // override onclose
    dc.onclose = function () {
        console.log('sender received transfer');
        sender.emit('complete');
    };
    return sender;
};

module.exports = Peer;

},{"filetransfer":15,"rtcpeerconnection":14,"util":8,"webrtcsupport":5,"wildemitter":4}],10:[function(require,module,exports){
var util = require('util');
var hark = require('hark');
var webrtc = require('webrtcsupport');
var getUserMedia = require('getusermedia');
var getScreenMedia = require('getscreenmedia');
var WildEmitter = require('wildemitter');
var GainController = require('mediastream-gain');
var mockconsole = require('mockconsole');


function LocalMedia(opts) {
    WildEmitter.call(this);

    var config = this.config = {
        autoAdjustMic: false,
        detectSpeakingEvents: true,
        audioFallback: false,
        media: {
            audio: true,
            video: true
        },
        logger: mockconsole
    };

    var item;
    for (item in opts) {
        this.config[item] = opts[item];
    }

    this.logger = config.logger;
    this._log = this.logger.log.bind(this.logger, 'LocalMedia:');
    this._logerror = this.logger.error.bind(this.logger, 'LocalMedia:');

    this.screenSharingSupport = webrtc.screenSharing;

    this.localStreams = [];
    this.localScreens = [];

    if (!webrtc.support) {
        this._logerror('Your browser does not support local media capture.');
    }
}

util.inherits(LocalMedia, WildEmitter);


LocalMedia.prototype.start = function (mediaConstraints, cb) {
    var self = this;
    var constraints = mediaConstraints || this.config.media;

    getUserMedia(constraints, function (err, stream) {

        if (!err) {
            if (constraints.audio && self.config.detectSpeakingEvents) {
                self.setupAudioMonitor(stream, self.config.harkOptions);
            }
            self.localStreams.push(stream);

            if (self.config.autoAdjustMic) {
                self.gainController = new GainController(stream);
                // start out somewhat muted if we can track audio
                self.setMicIfEnabled(0.5);
            }

            // TODO: might need to migrate to the video tracks onended
            // FIXME: firefox does not seem to trigger this...
            stream.onended = function () {
                /*
                var idx = self.localStreams.indexOf(stream);
                if (idx > -1) {
                    self.localScreens.splice(idx, 1);
                }
                self.emit('localStreamStopped', stream);
                */
            };

            self.emit('localStream', stream);
        } else {
            // Fallback for users without a camera
            if (self.config.audioFallback && err.name === 'DevicesNotFoundError' && constraints.video !== false) {
                constraints.video = false;
                self.start(constraints, cb);
                return;
            }
        }
        if (cb) {
            return cb(err, stream);
        }
    });
};

LocalMedia.prototype.stop = function (stream) {
    var self = this;
    // FIXME: duplicates cleanup code until fixed in FF
    if (stream) {
        stream.getTracks().forEach(function (track) { track.stop(); });
        var idx = self.localStreams.indexOf(stream);
        if (idx > -1) {
            self.emit('localStreamStopped', stream);
            self.localStreams = self.localStreams.splice(idx, 1);
        } else {
            idx = self.localScreens.indexOf(stream);
            if (idx > -1) {
                self.emit('localScreenStopped', stream);
                self.localScreens = self.localScreens.splce(idx, 1);
            }
        }
    } else {
        this.stopStreams();
        this.stopScreenShare();
    }
};

LocalMedia.prototype.stopStreams = function () {
    var self = this;
    if (this.audioMonitor) {
        this.audioMonitor.stop();
        delete this.audioMonitor;
    }
    this.localStreams.forEach(function (stream) {
        stream.getTracks().forEach(function (track) { track.stop(); });
        self.emit('localStreamStopped', stream);
    });
    this.localStreams = [];
};

LocalMedia.prototype.startScreenShare = function (cb) {
    var self = this;
    getScreenMedia(function (err, stream) {
        if (!err) {
            self.localScreens.push(stream);

            // TODO: might need to migrate to the video tracks onended
            // Firefox does not support .onended but it does not support
            // screensharing either
            stream.onended = function () {
                var idx = self.localScreens.indexOf(stream);
                if (idx > -1) {
                    self.localScreens.splice(idx, 1);
                }
                self.emit('localScreenStopped', stream);
            };
            self.emit('localScreen', stream);
        }

        // enable the callback
        if (cb) {
            return cb(err, stream);
        }
    });
};

LocalMedia.prototype.stopScreenShare = function (stream) {
    var self = this;
    if (stream) {
        stream.getTracks().forEach(function (track) { track.stop(); });
        this.emit('localScreenStopped', stream);
    } else {
        this.localScreens.forEach(function (stream) {
            stream.getTracks().forEach(function (track) { track.stop(); });
            self.emit('localScreenStopped', stream);
        });
        this.localScreens = [];
    }
};

// Audio controls
LocalMedia.prototype.mute = function () {
    this._audioEnabled(false);
    this.hardMuted = true;
    this.emit('audioOff');
};

LocalMedia.prototype.unmute = function () {
    this._audioEnabled(true);
    this.hardMuted = false;
    this.emit('audioOn');
};

LocalMedia.prototype.setupAudioMonitor = function (stream, harkOptions) {
    this._log('Setup audio');
    var audio = this.audioMonitor = hark(stream, harkOptions);
    var self = this;
    var timeout;

    audio.on('speaking', function () {
        self.emit('speaking');
        if (self.hardMuted) {
            return;
        }
        self.setMicIfEnabled(1);
    });

    audio.on('stopped_speaking', function () {
        if (timeout) {
            clearTimeout(timeout);
        }

        timeout = setTimeout(function () {
            self.emit('stoppedSpeaking');
            if (self.hardMuted) {
                return;
            }
            self.setMicIfEnabled(0.5);
        }, 1000);
    });
    audio.on('volume_change', function (volume, treshold) {
        self.emit('volumeChange', volume, treshold);
    });
};

// We do this as a seperate method in order to
// still leave the "setMicVolume" as a working
// method.
LocalMedia.prototype.setMicIfEnabled = function (volume) {
    if (!this.config.autoAdjustMic) {
        return;
    }
    this.gainController.setGain(volume);
};

// Video controls
LocalMedia.prototype.pauseVideo = function () {
    this._videoEnabled(false);
    this.emit('videoOff');
};
LocalMedia.prototype.resumeVideo = function () {
    this._videoEnabled(true);
    this.emit('videoOn');
};

// Combined controls
LocalMedia.prototype.pause = function () {
    this.mute();
    this.pauseVideo();
};
LocalMedia.prototype.resume = function () {
    this.unmute();
    this.resumeVideo();
};

// Internal methods for enabling/disabling audio/video
LocalMedia.prototype._audioEnabled = function (bool) {
    // work around for chrome 27 bug where disabling tracks
    // doesn't seem to work (works in canary, remove when working)
    this.setMicIfEnabled(bool ? 1 : 0);
    this.localStreams.forEach(function (stream) {
        stream.getAudioTracks().forEach(function (track) {
            track.enabled = !!bool;
        });
    });
};
LocalMedia.prototype._videoEnabled = function (bool) {
    this.localStreams.forEach(function (stream) {
        stream.getVideoTracks().forEach(function (track) {
            track.enabled = !!bool;
        });
    });
};

// check if all audio streams are enabled
LocalMedia.prototype.isAudioEnabled = function () {
    var enabled = true;
    this.localStreams.forEach(function (stream) {
        stream.getAudioTracks().forEach(function (track) {
            enabled = enabled && track.enabled;
        });
    });
    return enabled;
};

// check if all video streams are enabled
LocalMedia.prototype.isVideoEnabled = function () {
    var enabled = true;
    this.localStreams.forEach(function (stream) {
        stream.getVideoTracks().forEach(function (track) {
            enabled = enabled && track.enabled;
        });
    });
    return enabled;
};

// Backwards Compat
LocalMedia.prototype.startLocalMedia = LocalMedia.prototype.start;
LocalMedia.prototype.stopLocalMedia = LocalMedia.prototype.stop;

// fallback for old .localStream behaviour
Object.defineProperty(LocalMedia.prototype, 'localStream', {
    get: function () {
        return this.localStreams.length > 0 ? this.localStreams[0] : null;
    }
});
// fallback for old .localScreen behaviour
Object.defineProperty(LocalMedia.prototype, 'localScreen', {
    get: function () {
        return this.localScreens.length > 0 ? this.localScreens[0] : null;
    }
});

module.exports = LocalMedia;

},{"getscreenmedia":17,"getusermedia":16,"hark":18,"mediastream-gain":19,"mockconsole":6,"util":8,"webrtcsupport":5,"wildemitter":4}],20:[function(require,module,exports){
/*
 *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* More information about these options at jshint.com/docs/options */
/* jshint browser: true, camelcase: true, curly: true, devel: true,
   eqeqeq: true, forin: false, globalstrict: true, node: true,
   quotmark: single, undef: true, unused: strict */
/* global mozRTCIceCandidate, mozRTCPeerConnection, Promise,
mozRTCSessionDescription, webkitRTCPeerConnection, MediaStreamTrack */
/* exported trace,requestUserMedia */

'use strict';

var getUserMedia = null;
var attachMediaStream = null;
var reattachMediaStream = null;
var webrtcDetectedBrowser = null;
var webrtcDetectedVersion = null;
var webrtcMinimumVersion = null;
var webrtcUtils = {
  log: function() {
    // suppress console.log output when being included as a module.
    if (typeof module !== 'undefined' ||
        typeof require === 'function' && typeof define === 'function') {
      return;
    }
    console.log.apply(console, arguments);
  }
};

function trace(text) {
  // This function is used for logging.
  if (text[text.length - 1] === '\n') {
    text = text.substring(0, text.length - 1);
  }
  if (window.performance) {
    var now = (window.performance.now() / 1000).toFixed(3);
    webrtcUtils.log(now + ': ' + text);
  } else {
    webrtcUtils.log(text);
  }
}

if (typeof window === 'object') {
  if (window.HTMLMediaElement &&
    !('srcObject' in window.HTMLMediaElement.prototype)) {
    // Shim the srcObject property, once, when HTMLMediaElement is found.
    Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', {
      get: function() {
        // If prefixed srcObject property exists, return it.
        // Otherwise use the shimmed property, _srcObject
        return 'mozSrcObject' in this ? this.mozSrcObject : this._srcObject;
      },
      set: function(stream) {
        if ('mozSrcObject' in this) {
          this.mozSrcObject = stream;
        } else {
          // Use _srcObject as a private property for this shim
          this._srcObject = stream;
          // TODO: revokeObjectUrl(this.src) when !stream to release resources?
          this.src = URL.createObjectURL(stream);
        }
      }
    });
  }
  // Proxy existing globals
  getUserMedia = window.navigator && window.navigator.getUserMedia;
}

// Attach a media stream to an element.
attachMediaStream = function(element, stream) {
  element.srcObject = stream;
};

reattachMediaStream = function(to, from) {
  to.srcObject = from.srcObject;
};

if (typeof window === 'undefined' || !window.navigator) {
  webrtcUtils.log('This does not appear to be a browser');
  webrtcDetectedBrowser = 'not a browser';
} else if (navigator.mozGetUserMedia && window.mozRTCPeerConnection) {
  webrtcUtils.log('This appears to be Firefox');

  webrtcDetectedBrowser = 'firefox';

  // the detected firefox version.
  webrtcDetectedVersion =
    parseInt(navigator.userAgent.match(/Firefox\/([0-9]+)\./)[1], 10);

  // the minimum firefox version still supported by adapter.
  webrtcMinimumVersion = 31;

  // The RTCPeerConnection object.
  window.RTCPeerConnection = function(pcConfig, pcConstraints) {
    if (webrtcDetectedVersion < 38) {
      // .urls is not supported in FF < 38.
      // create RTCIceServers with a single url.
      if (pcConfig && pcConfig.iceServers) {
        var newIceServers = [];
        for (var i = 0; i < pcConfig.iceServers.length; i++) {
          var server = pcConfig.iceServers[i];
          if (server.hasOwnProperty('urls')) {
            for (var j = 0; j < server.urls.length; j++) {
              var newServer = {
                url: server.urls[j]
              };
              if (server.urls[j].indexOf('turn') === 0) {
                newServer.username = server.username;
                newServer.credential = server.credential;
              }
              newIceServers.push(newServer);
            }
          } else {
            newIceServers.push(pcConfig.iceServers[i]);
          }
        }
        pcConfig.iceServers = newIceServers;
      }
    }
    return new mozRTCPeerConnection(pcConfig, pcConstraints); // jscs:ignore requireCapitalizedConstructors
  };

  // The RTCSessionDescription object.
  window.RTCSessionDescription = mozRTCSessionDescription;

  // The RTCIceCandidate object.
  window.RTCIceCandidate = mozRTCIceCandidate;

  // getUserMedia constraints shim.
  getUserMedia = function(constraints, onSuccess, onError) {
    var constraintsToFF37 = function(c) {
      if (typeof c !== 'object' || c.require) {
        return c;
      }
      var require = [];
      Object.keys(c).forEach(function(key) {
        if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
          return;
        }
        var r = c[key] = (typeof c[key] === 'object') ?
            c[key] : {ideal: c[key]};
        if (r.min !== undefined ||
            r.max !== undefined || r.exact !== undefined) {
          require.push(key);
        }
        if (r.exact !== undefined) {
          if (typeof r.exact === 'number') {
            r.min = r.max = r.exact;
          } else {
            c[key] = r.exact;
          }
          delete r.exact;
        }
        if (r.ideal !== undefined) {
          c.advanced = c.advanced || [];
          var oc = {};
          if (typeof r.ideal === 'number') {
            oc[key] = {min: r.ideal, max: r.ideal};
          } else {
            oc[key] = r.ideal;
          }
          c.advanced.push(oc);
          delete r.ideal;
          if (!Object.keys(r).length) {
            delete c[key];
          }
        }
      });
      if (require.length) {
        c.require = require;
      }
      return c;
    };
    if (webrtcDetectedVersion < 38) {
      webrtcUtils.log('spec: ' + JSON.stringify(constraints));
      if (constraints.audio) {
        constraints.audio = constraintsToFF37(constraints.audio);
      }
      if (constraints.video) {
        constraints.video = constraintsToFF37(constraints.video);
      }
      webrtcUtils.log('ff37: ' + JSON.stringify(constraints));
    }
    return navigator.mozGetUserMedia(constraints, onSuccess, onError);
  };

  navigator.getUserMedia = getUserMedia;

  // Shim for mediaDevices on older versions.
  if (!navigator.mediaDevices) {
    navigator.mediaDevices = {getUserMedia: requestUserMedia,
      addEventListener: function() { },
      removeEventListener: function() { }
    };
  }
  navigator.mediaDevices.enumerateDevices =
      navigator.mediaDevices.enumerateDevices || function() {
    return new Promise(function(resolve) {
      var infos = [
        {kind: 'audioinput', deviceId: 'default', label: '', groupId: ''},
        {kind: 'videoinput', deviceId: 'default', label: '', groupId: ''}
      ];
      resolve(infos);
    });
  };

  if (webrtcDetectedVersion < 41) {
    // Work around http://bugzil.la/1169665
    var orgEnumerateDevices =
        navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);
    navigator.mediaDevices.enumerateDevices = function() {
      return orgEnumerateDevices().catch(function(e) {
        if (e.name === 'NotFoundError') {
          return [];
        }
        throw e;
      });
    };
  }
} else if (navigator.webkitGetUserMedia && !!window.chrome) {
  webrtcUtils.log('This appears to be Chrome');

  webrtcDetectedBrowser = 'chrome';

  // the detected chrome version.
  webrtcDetectedVersion =
    parseInt(navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./)[2], 10);

  // the minimum chrome version still supported by adapter.
  webrtcMinimumVersion = 38;

  // The RTCPeerConnection object.
  window.RTCPeerConnection = function(pcConfig, pcConstraints) {
    // Translate iceTransportPolicy to iceTransports,
    // see https://code.google.com/p/webrtc/issues/detail?id=4869
    if (pcConfig && pcConfig.iceTransportPolicy) {
      pcConfig.iceTransports = pcConfig.iceTransportPolicy;
    }

    var pc = new webkitRTCPeerConnection(pcConfig, pcConstraints); // jscs:ignore requireCapitalizedConstructors
    var origGetStats = pc.getStats.bind(pc);
    pc.getStats = function(selector, successCallback, errorCallback) { // jshint ignore: line
      var self = this;
      var args = arguments;

      // If selector is a function then we are in the old style stats so just
      // pass back the original getStats format to avoid breaking old users.
      if (arguments.length > 0 && typeof selector === 'function') {
        return origGetStats(selector, successCallback);
      }

      var fixChromeStats = function(response) {
        var standardReport = {};
        var reports = response.result();
        reports.forEach(function(report) {
          var standardStats = {
            id: report.id,
            timestamp: report.timestamp,
            type: report.type
          };
          report.names().forEach(function(name) {
            standardStats[name] = report.stat(name);
          });
          standardReport[standardStats.id] = standardStats;
        });

        return standardReport;
      };

      if (arguments.length >= 2) {
        var successCallbackWrapper = function(response) {
          args[1](fixChromeStats(response));
        };

        return origGetStats.apply(this, [successCallbackWrapper, arguments[0]]);
      }

      // promise-support
      return new Promise(function(resolve, reject) {
        if (args.length === 1 && selector === null) {
          origGetStats.apply(self, [
              function(response) {
                resolve.apply(null, [fixChromeStats(response)]);
              }, reject]);
        } else {
          origGetStats.apply(self, [resolve, reject]);
        }
      });
    };

    return pc;
  };

  // add promise support
  ['createOffer', 'createAnswer'].forEach(function(method) {
    var nativeMethod = webkitRTCPeerConnection.prototype[method];
    webkitRTCPeerConnection.prototype[method] = function() {
      var self = this;
      if (arguments.length < 1 || (arguments.length === 1 &&
          typeof(arguments[0]) === 'object')) {
        var opts = arguments.length === 1 ? arguments[0] : undefined;
        return new Promise(function(resolve, reject) {
          nativeMethod.apply(self, [resolve, reject, opts]);
        });
      } else {
        return nativeMethod.apply(this, arguments);
      }
    };
  });

  ['setLocalDescription', 'setRemoteDescription',
      'addIceCandidate'].forEach(function(method) {
    var nativeMethod = webkitRTCPeerConnection.prototype[method];
    webkitRTCPeerConnection.prototype[method] = function() {
      var args = arguments;
      var self = this;
      return new Promise(function(resolve, reject) {
        nativeMethod.apply(self, [args[0],
            function() {
              resolve();
              if (args.length >= 2) {
                args[1].apply(null, []);
              }
            },
            function(err) {
              reject(err);
              if (args.length >= 3) {
                args[2].apply(null, [err]);
              }
            }]
          );
      });
    };
  });

  // getUserMedia constraints shim.
  var constraintsToChrome = function(c) {
    if (typeof c !== 'object' || c.mandatory || c.optional) {
      return c;
    }
    var cc = {};
    Object.keys(c).forEach(function(key) {
      if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
        return;
      }
      var r = (typeof c[key] === 'object') ? c[key] : {ideal: c[key]};
      if (r.exact !== undefined && typeof r.exact === 'number') {
        r.min = r.max = r.exact;
      }
      var oldname = function(prefix, name) {
        if (prefix) {
          return prefix + name.charAt(0).toUpperCase() + name.slice(1);
        }
        return (name === 'deviceId') ? 'sourceId' : name;
      };
      if (r.ideal !== undefined) {
        cc.optional = cc.optional || [];
        var oc = {};
        if (typeof r.ideal === 'number') {
          oc[oldname('min', key)] = r.ideal;
          cc.optional.push(oc);
          oc = {};
          oc[oldname('max', key)] = r.ideal;
          cc.optional.push(oc);
        } else {
          oc[oldname('', key)] = r.ideal;
          cc.optional.push(oc);
        }
      }
      if (r.exact !== undefined && typeof r.exact !== 'number') {
        cc.mandatory = cc.mandatory || {};
        cc.mandatory[oldname('', key)] = r.exact;
      } else {
        ['min', 'max'].forEach(function(mix) {
          if (r[mix] !== undefined) {
            cc.mandatory = cc.mandatory || {};
            cc.mandatory[oldname(mix, key)] = r[mix];
          }
        });
      }
    });
    if (c.advanced) {
      cc.optional = (cc.optional || []).concat(c.advanced);
    }
    return cc;
  };

  getUserMedia = function(constraints, onSuccess, onError) {
    if (constraints.audio) {
      constraints.audio = constraintsToChrome(constraints.audio);
    }
    if (constraints.video) {
      constraints.video = constraintsToChrome(constraints.video);
    }
    webrtcUtils.log('chrome: ' + JSON.stringify(constraints));
    return navigator.webkitGetUserMedia(constraints, onSuccess, onError);
  };
  navigator.getUserMedia = getUserMedia;

  if (!navigator.mediaDevices) {
    navigator.mediaDevices = {getUserMedia: requestUserMedia,
                              enumerateDevices: function() {
      return new Promise(function(resolve) {
        var kinds = {audio: 'audioinput', video: 'videoinput'};
        return MediaStreamTrack.getSources(function(devices) {
          resolve(devices.map(function(device) {
            return {label: device.label,
                    kind: kinds[device.kind],
                    deviceId: device.id,
                    groupId: ''};
          }));
        });
      });
    }};
  }

  // A shim for getUserMedia method on the mediaDevices object.
  // TODO(KaptenJansson) remove once implemented in Chrome stable.
  if (!navigator.mediaDevices.getUserMedia) {
    navigator.mediaDevices.getUserMedia = function(constraints) {
      return requestUserMedia(constraints);
    };
  } else {
    // Even though Chrome 45 has navigator.mediaDevices and a getUserMedia
    // function which returns a Promise, it does not accept spec-style
    // constraints.
    var origGetUserMedia = navigator.mediaDevices.getUserMedia.
        bind(navigator.mediaDevices);
    navigator.mediaDevices.getUserMedia = function(c) {
      webrtcUtils.log('spec:   ' + JSON.stringify(c)); // whitespace for alignment
      c.audio = constraintsToChrome(c.audio);
      c.video = constraintsToChrome(c.video);
      webrtcUtils.log('chrome: ' + JSON.stringify(c));
      return origGetUserMedia(c);
    };
  }

  // Dummy devicechange event methods.
  // TODO(KaptenJansson) remove once implemented in Chrome stable.
  if (typeof navigator.mediaDevices.addEventListener === 'undefined') {
    navigator.mediaDevices.addEventListener = function() {
      webrtcUtils.log('Dummy mediaDevices.addEventListener called.');
    };
  }
  if (typeof navigator.mediaDevices.removeEventListener === 'undefined') {
    navigator.mediaDevices.removeEventListener = function() {
      webrtcUtils.log('Dummy mediaDevices.removeEventListener called.');
    };
  }

  // Attach a media stream to an element.
  attachMediaStream = function(element, stream) {
    if (webrtcDetectedVersion >= 43) {
      element.srcObject = stream;
    } else if (typeof element.src !== 'undefined') {
      element.src = URL.createObjectURL(stream);
    } else {
      webrtcUtils.log('Error attaching stream to element.');
    }
  };
  reattachMediaStream = function(to, from) {
    if (webrtcDetectedVersion >= 43) {
      to.srcObject = from.srcObject;
    } else {
      to.src = from.src;
    }
  };

} else if (navigator.mediaDevices && navigator.userAgent.match(
    /Edge\/(\d+).(\d+)$/)) {
  webrtcUtils.log('This appears to be Edge');
  webrtcDetectedBrowser = 'edge';

  webrtcDetectedVersion =
    parseInt(navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)[2], 10);

  // the minimum version still supported by adapter.
  webrtcMinimumVersion = 12;
} else {
  webrtcUtils.log('Browser does not appear to be WebRTC-capable');
}

// Returns the result of getUserMedia as a Promise.
function requestUserMedia(constraints) {
  return new Promise(function(resolve, reject) {
    getUserMedia(constraints, resolve, reject);
  });
}

var webrtcTesting = {};
Object.defineProperty(webrtcTesting, 'version', {
  set: function(version) {
    webrtcDetectedVersion = version;
  }
});

if (typeof module !== 'undefined') {
  var RTCPeerConnection;
  if (typeof window !== 'undefined') {
    RTCPeerConnection = window.RTCPeerConnection;
  }
  module.exports = {
    RTCPeerConnection: RTCPeerConnection,
    getUserMedia: getUserMedia,
    attachMediaStream: attachMediaStream,
    reattachMediaStream: reattachMediaStream,
    webrtcDetectedBrowser: webrtcDetectedBrowser,
    webrtcDetectedVersion: webrtcDetectedVersion,
    webrtcMinimumVersion: webrtcMinimumVersion,
    webrtcTesting: webrtcTesting
    //requestUserMedia: not exposed on purpose.
    //trace: not exposed on purpose.
  };
} else if ((typeof require === 'function') && (typeof define === 'function')) {
  // Expose objects and functions when RequireJS is doing the loading.
  define([], function() {
    return {
      RTCPeerConnection: window.RTCPeerConnection,
      getUserMedia: getUserMedia,
      attachMediaStream: attachMediaStream,
      reattachMediaStream: reattachMediaStream,
      webrtcDetectedBrowser: webrtcDetectedBrowser,
      webrtcDetectedVersion: webrtcDetectedVersion,
      webrtcMinimumVersion: webrtcMinimumVersion,
      webrtcTesting: webrtcTesting
      //requestUserMedia: not exposed on purpose.
      //trace: not exposed on purpose.
    };
  });
}

},{}],15:[function(require,module,exports){
var WildEmitter = require('wildemitter');
var util = require('util');

function Sender(opts) {
    WildEmitter.call(this);
    var options = opts || {};
    this.config = {
        chunksize: 16384,
        pacing: 0
    };
    // set our config from options
    var item;
    for (item in options) {
        this.config[item] = options[item];
    }

    this.file = null;
    this.channel = null;
}
util.inherits(Sender, WildEmitter);

Sender.prototype.send = function (file, channel) {
    var self = this;
    this.file = file;
    this.channel = channel;
    var sliceFile = function(offset) {
        var reader = new window.FileReader();
        reader.onload = (function() {
            return function(e) {
                self.channel.send(e.target.result);
                self.emit('progress', offset, file.size, e.target.result);
                if (file.size > offset + e.target.result.byteLength) {
                    window.setTimeout(sliceFile, self.config.pacing, offset + self.config.chunksize);
                } else {
                    self.emit('progress', file.size, file.size, null);
                    self.emit('sentFile');
                }
            };
        })(file);
        var slice = file.slice(offset, offset + self.config.chunksize);
        reader.readAsArrayBuffer(slice);
    };
    window.setTimeout(sliceFile, 0, 0);
};

function Receiver() {
    WildEmitter.call(this);

    this.receiveBuffer = [];
    this.received = 0;
    this.metadata = {};
    this.channel = null;
}
util.inherits(Receiver, WildEmitter);

Receiver.prototype.receive = function (metadata, channel) {
    var self = this;

    if (metadata) {
        this.metadata = metadata;
    }
    this.channel = channel;
    // chrome only supports arraybuffers and those make it easier to calc the hash
    channel.binaryType = 'arraybuffer';
    this.channel.onmessage = function (event) {
        var len = event.data.byteLength;
        self.received += len;
        self.receiveBuffer.push(event.data);

        self.emit('progress', self.received, self.metadata.size, event.data);
        if (self.received === self.metadata.size) {
            self.emit('receivedFile', new window.Blob(self.receiveBuffer), self.metadata);
            self.receiveBuffer = []; // discard receivebuffer
        } else if (self.received > self.metadata.size) {
            // FIXME
            console.error('received more than expected, discarding...');
            self.receiveBuffer = []; // just discard...

        }
    };
};

module.exports = {};
module.exports.support = typeof window !== 'undefined' && window && window.File && window.FileReader && window.Blob;
module.exports.Sender = Sender;
module.exports.Receiver = Receiver;

},{"util":8,"wildemitter":4}],14:[function(require,module,exports){
var util = require('util');
var each = require('lodash.foreach');
var pluck = require('lodash.pluck');
var SJJ = require('sdp-jingle-json');
var WildEmitter = require('wildemitter');
var peerconn = require('traceablepeerconnection');
var adapter = require('webrtc-adapter-test');

function PeerConnection(config, constraints) {
    var self = this;
    var item;
    WildEmitter.call(this);

    config = config || {};
    config.iceServers = config.iceServers || [];

    // make sure this only gets enabled in Google Chrome
    // EXPERIMENTAL FLAG, might get removed without notice
    this.enableChromeNativeSimulcast = false;
    if (constraints && constraints.optional &&
            adapter.webrtcDetectedBrowser === 'chrome' &&
            navigator.appVersion.match(/Chromium\//) === null) {
        constraints.optional.forEach(function (constraint) {
            if (constraint.enableChromeNativeSimulcast) {
                self.enableChromeNativeSimulcast = true;
            }
        });
    }

    // EXPERIMENTAL FLAG, might get removed without notice
    this.enableMultiStreamHacks = false;
    if (constraints && constraints.optional &&
            adapter.webrtcDetectedBrowser === 'chrome') {
        constraints.optional.forEach(function (constraint) {
            if (constraint.enableMultiStreamHacks) {
                self.enableMultiStreamHacks = true;
            }
        });
    }
    // EXPERIMENTAL FLAG, might get removed without notice
    this.restrictBandwidth = 0;
    if (constraints && constraints.optional) {
        constraints.optional.forEach(function (constraint) {
            if (constraint.andyetRestrictBandwidth) {
                self.restrictBandwidth = constraint.andyetRestrictBandwidth;
            }
        });
    }

    // EXPERIMENTAL FLAG, might get removed without notice
    // bundle up ice candidates, only works for jingle mode
    // number > 0 is the delay to wait for additional candidates
    // ~20ms seems good
    this.batchIceCandidates = 0;
    if (constraints && constraints.optional) {
        constraints.optional.forEach(function (constraint) {
            if (constraint.andyetBatchIce) {
                self.batchIceCandidates = constraint.andyetBatchIce;
            }
        });
    }
    this.batchedIceCandidates = [];

    // EXPERIMENTAL FLAG, might get removed without notice
    // this attemps to strip out candidates with an already known foundation
    // and type -- i.e. those which are gathered via the same TURN server
    // but different transports (TURN udp, tcp and tls respectively)
    if (constraints && constraints.optional && adapter.webrtcDetectedBrowser === 'chrome') {
        constraints.optional.forEach(function (constraint) {
            if (constraint.andyetFasterICE) {
                self.eliminateDuplicateCandidates = constraint.andyetFasterICE;
            }
        });
    }
    // EXPERIMENTAL FLAG, might get removed without notice
    // when using a server such as the jitsi videobridge we don't need to signal
    // our candidates
    if (constraints && constraints.optional) {
        constraints.optional.forEach(function (constraint) {
            if (constraint.andyetDontSignalCandidates) {
                self.dontSignalCandidates = constraint.andyetDontSignalCandidates;
            }
        });
    }


    // EXPERIMENTAL FLAG, might get removed without notice
    this.assumeSetLocalSuccess = false;
    if (constraints && constraints.optional) {
        constraints.optional.forEach(function (constraint) {
            if (constraint.andyetAssumeSetLocalSuccess) {
                self.assumeSetLocalSuccess = constraint.andyetAssumeSetLocalSuccess;
            }
        });
    }

    // EXPERIMENTAL FLAG, might get removed without notice
    // working around https://bugzilla.mozilla.org/show_bug.cgi?id=1087551
    // pass in a timeout for this
    if (adapter.webrtcDetectedBrowser === 'firefox') {
        if (constraints && constraints.optional) {
            this.wtFirefox = 0;
            constraints.optional.forEach(function (constraint) {
                if (constraint.andyetFirefoxMakesMeSad) {
                    self.wtFirefox = constraint.andyetFirefoxMakesMeSad;
                    if (self.wtFirefox > 0) {
                        self.firefoxcandidatebuffer = [];
                    }
                }
            });
        }
    }


    this.pc = new peerconn(config, constraints);

    this.getLocalStreams = this.pc.getLocalStreams.bind(this.pc);
    this.getRemoteStreams = this.pc.getRemoteStreams.bind(this.pc);
    this.addStream = this.pc.addStream.bind(this.pc);
    this.removeStream = this.pc.removeStream.bind(this.pc);

    // proxy events
    this.pc.on('*', function () {
        self.emit.apply(self, arguments);
    });

    // proxy some events directly
    this.pc.onremovestream = this.emit.bind(this, 'removeStream');
    this.pc.onaddstream = this.emit.bind(this, 'addStream');
    this.pc.onnegotiationneeded = this.emit.bind(this, 'negotiationNeeded');
    this.pc.oniceconnectionstatechange = this.emit.bind(this, 'iceConnectionStateChange');
    this.pc.onsignalingstatechange = this.emit.bind(this, 'signalingStateChange');

    // handle ice candidate and data channel events
    this.pc.onicecandidate = this._onIce.bind(this);
    this.pc.ondatachannel = this._onDataChannel.bind(this);

    this.localDescription = {
        contents: []
    };
    this.remoteDescription = {
        contents: []
    };

    this.config = {
        debug: false,
        ice: {},
        sid: '',
        isInitiator: true,
        sdpSessionID: Date.now(),
        useJingle: false
    };

    // apply our config
    for (item in config) {
        this.config[item] = config[item];
    }

    if (this.config.debug) {
        this.on('*', function () {
            var logger = config.logger || console;
            logger.log('PeerConnection event:', arguments);
        });
    }
    this.hadLocalStunCandidate = false;
    this.hadRemoteStunCandidate = false;
    this.hadLocalRelayCandidate = false;
    this.hadRemoteRelayCandidate = false;

    this.hadLocalIPv6Candidate = false;
    this.hadRemoteIPv6Candidate = false;

    // keeping references for all our data channels
    // so they dont get garbage collected
    // can be removed once the following bugs have been fixed
    // https://crbug.com/405545
    // https://bugzilla.mozilla.org/show_bug.cgi?id=964092
    // to be filed for opera
    this._remoteDataChannels = [];
    this._localDataChannels = [];

    this._candidateBuffer = [];
}

util.inherits(PeerConnection, WildEmitter);

Object.defineProperty(PeerConnection.prototype, 'signalingState', {
    get: function () {
        return this.pc.signalingState;
    }
});
Object.defineProperty(PeerConnection.prototype, 'iceConnectionState', {
    get: function () {
        return this.pc.iceConnectionState;
    }
});

PeerConnection.prototype._role = function () {
    return this.isInitiator ? 'initiator' : 'responder';
};

// Add a stream to the peer connection object
PeerConnection.prototype.addStream = function (stream) {
    this.localStream = stream;
    this.pc.addStream(stream);
};

// helper function to check if a remote candidate is a stun/relay
// candidate or an ipv6 candidate
PeerConnection.prototype._checkLocalCandidate = function (candidate) {
    var cand = SJJ.toCandidateJSON(candidate);
    if (cand.type == 'srflx') {
        this.hadLocalStunCandidate = true;
    } else if (cand.type == 'relay') {
        this.hadLocalRelayCandidate = true;
    }
    if (cand.ip.indexOf(':') != -1) {
        this.hadLocalIPv6Candidate = true;
    }
};

// helper function to check if a remote candidate is a stun/relay
// candidate or an ipv6 candidate
PeerConnection.prototype._checkRemoteCandidate = function (candidate) {
    var cand = SJJ.toCandidateJSON(candidate);
    if (cand.type == 'srflx') {
        this.hadRemoteStunCandidate = true;
    } else if (cand.type == 'relay') {
        this.hadRemoteRelayCandidate = true;
    }
    if (cand.ip.indexOf(':') != -1) {
        this.hadRemoteIPv6Candidate = true;
    }
};


// Init and add ice candidate object with correct constructor
PeerConnection.prototype.processIce = function (update, cb) {
    cb = cb || function () {};
    var self = this;

    // ignore any added ice candidates to avoid errors. why does the
    // spec not do this?
    if (this.pc.signalingState === 'closed') return cb();

    if (update.contents || (update.jingle && update.jingle.contents)) {
        var contentNames = pluck(this.remoteDescription.contents, 'name');
        var contents = update.contents || update.jingle.contents;

        contents.forEach(function (content) {
            var transport = content.transport || {};
            var candidates = transport.candidates || [];
            var mline = contentNames.indexOf(content.name);
            var mid = content.name;

            candidates.forEach(
                function (candidate) {
                var iceCandidate = SJJ.toCandidateSDP(candidate) + '\r\n';
                self.pc.addIceCandidate(
                    new RTCIceCandidate({
                        candidate: iceCandidate,
                        sdpMLineIndex: mline,
                        sdpMid: mid
                    }), function () {
                        // well, this success callback is pretty meaningless
                    },
                    function (err) {
                        self.emit('error', err);
                    }
                );
                self._checkRemoteCandidate(iceCandidate);
            });
        });
    } else {
        // working around https://code.google.com/p/webrtc/issues/detail?id=3669
        if (update.candidate && update.candidate.candidate.indexOf('a=') !== 0) {
            update.candidate.candidate = 'a=' + update.candidate.candidate;
        }

        if (this.wtFirefox && this.firefoxcandidatebuffer !== null) {
            // we cant add this yet due to https://bugzilla.mozilla.org/show_bug.cgi?id=1087551
            if (this.pc.localDescription && this.pc.localDescription.type === 'offer') {
                this.firefoxcandidatebuffer.push(update.candidate);
                return cb();
            }
        }

        self.pc.addIceCandidate(
            new RTCIceCandidate(update.candidate),
            function () { },
            function (err) {
                self.emit('error', err);
            }
        );
        self._checkRemoteCandidate(update.candidate.candidate);
    }
    cb();
};

// Generate and emit an offer with the given constraints
PeerConnection.prototype.offer = function (constraints, cb) {
    var self = this;
    var hasConstraints = arguments.length === 2;
    var mediaConstraints = hasConstraints && constraints ? constraints : {
            mandatory: {
                OfferToReceiveAudio: true,
                OfferToReceiveVideo: true
            }
        };
    cb = hasConstraints ? cb : constraints;
    cb = cb || function () {};

    if (this.pc.signalingState === 'closed') return cb('Already closed');

    // Actually generate the offer
    this.pc.createOffer(
        function (offer) {
            // does not work for jingle, but jingle.js doesn't need
            // this hack...
            var expandedOffer = {
                type: 'offer',
                sdp: offer.sdp
            };
            if (self.assumeSetLocalSuccess) {
                self.emit('offer', expandedOffer);
                cb(null, expandedOffer);
            }
            self._candidateBuffer = [];
            self.pc.setLocalDescription(offer,
                function () {
                    var jingle;
                    if (self.config.useJingle) {
                        jingle = SJJ.toSessionJSON(offer.sdp, {
                            role: self._role(),
                            direction: 'outgoing'
                        });
                        jingle.sid = self.config.sid;
                        self.localDescription = jingle;

                        // Save ICE credentials
                        each(jingle.contents, function (content) {
                            var transport = content.transport || {};
                            if (transport.ufrag) {
                                self.config.ice[content.name] = {
                                    ufrag: transport.ufrag,
                                    pwd: transport.pwd
                                };
                            }
                        });

                        expandedOffer.jingle = jingle;
                    }
                    expandedOffer.sdp.split('\r\n').forEach(function (line) {
                        if (line.indexOf('a=candidate:') === 0) {
                            self._checkLocalCandidate(line);
                        }
                    });

                    if (!self.assumeSetLocalSuccess) {
                        self.emit('offer', expandedOffer);
                        cb(null, expandedOffer);
                    }
                },
                function (err) {
                    self.emit('error', err);
                    cb(err);
                }
            );
        },
        function (err) {
            self.emit('error', err);
            cb(err);
        },
        mediaConstraints
    );
};


// Process an incoming offer so that ICE may proceed before deciding
// to answer the request.
PeerConnection.prototype.handleOffer = function (offer, cb) {
    cb = cb || function () {};
    var self = this;
    offer.type = 'offer';
    if (offer.jingle) {
        if (this.enableChromeNativeSimulcast) {
            offer.jingle.contents.forEach(function (content) {
                if (content.name === 'video') {
                    content.description.googConferenceFlag = true;
                }
            });
        }
        if (this.enableMultiStreamHacks) {
            // add a mixed video stream as first stream
            offer.jingle.contents.forEach(function (content) {
                if (content.name === 'video') {
                    var sources = content.description.sources || [];
                    if (sources.length === 0 || sources[0].ssrc !== "3735928559") {
                        sources.unshift({
                            ssrc: "3735928559", // 0xdeadbeef
                            parameters: [
                                {
                                    key: "cname",
                                    value: "deadbeef"
                                },
                                {
                                    key: "msid",
                                    value: "mixyourfecintothis please"
                                }
                            ]
                        });
                        content.description.sources = sources;
                    }
                }
            });
        }
        if (self.restrictBandwidth > 0) {
            if (offer.jingle.contents.length >= 2 && offer.jingle.contents[1].name === 'video') {
                var content = offer.jingle.contents[1];
                var hasBw = content.description && content.description.bandwidth;
                if (!hasBw) {
                    offer.jingle.contents[1].description.bandwidth = { type: 'AS', bandwidth: self.restrictBandwidth.toString() };
                    offer.sdp = SJJ.toSessionSDP(offer.jingle, {
                        sid: self.config.sdpSessionID,
                        role: self._role(),
                        direction: 'outgoing'
                    });
                }
            }
        }
        offer.sdp = SJJ.toSessionSDP(offer.jingle, {
            sid: self.config.sdpSessionID,
            role: self._role(),
            direction: 'incoming'
        });
        self.remoteDescription = offer.jingle;
    }
    offer.sdp.split('\r\n').forEach(function (line) {
        if (line.indexOf('a=candidate:') === 0) {
            self._checkRemoteCandidate(line);
        }
    });
    self.pc.setRemoteDescription(new RTCSessionDescription(offer),
        function () {
            cb();
        },
        cb
    );
};

// Answer an offer with audio only
PeerConnection.prototype.answerAudioOnly = function (cb) {
    var mediaConstraints = {
            mandatory: {
                OfferToReceiveAudio: true,
                OfferToReceiveVideo: false
            }
        };
    this._answer(mediaConstraints, cb);
};

// Answer an offer without offering to recieve
PeerConnection.prototype.answerBroadcastOnly = function (cb) {
    var mediaConstraints = {
            mandatory: {
                OfferToReceiveAudio: false,
                OfferToReceiveVideo: false
            }
        };
    this._answer(mediaConstraints, cb);
};

// Answer an offer with given constraints default is audio/video
PeerConnection.prototype.answer = function (constraints, cb) {
    var hasConstraints = arguments.length === 2;
    var callback = hasConstraints ? cb : constraints;
    var mediaConstraints = hasConstraints && constraints ? constraints : {
            mandatory: {
                OfferToReceiveAudio: true,
                OfferToReceiveVideo: true
            }
        };

    this._answer(mediaConstraints, callback);
};

// Process an answer
PeerConnection.prototype.handleAnswer = function (answer, cb) {
    cb = cb || function () {};
    var self = this;
    if (answer.jingle) {
        answer.sdp = SJJ.toSessionSDP(answer.jingle, {
            sid: self.config.sdpSessionID,
            role: self._role(),
            direction: 'incoming'
        });
        self.remoteDescription = answer.jingle;
    }
    answer.sdp.split('\r\n').forEach(function (line) {
        if (line.indexOf('a=candidate:') === 0) {
            self._checkRemoteCandidate(line);
        }
    });
    self.pc.setRemoteDescription(
        new RTCSessionDescription(answer),
        function () {
            if (self.wtFirefox) {
                window.setTimeout(function () {
                    self.firefoxcandidatebuffer.forEach(function (candidate) {
                        // add candidates later
                        self.pc.addIceCandidate(
                            new RTCIceCandidate(candidate),
                            function () { },
                            function (err) {
                                self.emit('error', err);
                            }
                        );
                        self._checkRemoteCandidate(candidate.candidate);
                    });
                    self.firefoxcandidatebuffer = null;
                }, self.wtFirefox);
            }
            cb(null);
        },
        cb
    );
};

// Close the peer connection
PeerConnection.prototype.close = function () {
    this.pc.close();

    this._localDataChannels = [];
    this._remoteDataChannels = [];

    this.emit('close');
};

// Internal code sharing for various types of answer methods
PeerConnection.prototype._answer = function (constraints, cb) {
    cb = cb || function () {};
    var self = this;
    if (!this.pc.remoteDescription) {
        // the old API is used, call handleOffer
        throw new Error('remoteDescription not set');
    }

    if (this.pc.signalingState === 'closed') return cb('Already closed');

    self.pc.createAnswer(
        function (answer) {
            var sim = [];
            if (self.enableChromeNativeSimulcast) {
                // native simulcast part 1: add another SSRC
                answer.jingle = SJJ.toSessionJSON(answer.sdp, {
                    role: self._role(),
                    direction: 'outgoing'
                });
                if (answer.jingle.contents.length >= 2 && answer.jingle.contents[1].name === 'video') {
                    var groups = answer.jingle.contents[1].description.sourceGroups || [];
                    var hasSim = false;
                    groups.forEach(function (group) {
                        if (group.semantics == 'SIM') hasSim = true;
                    });
                    if (!hasSim &&
                        answer.jingle.contents[1].description.sources.length) {
                        var newssrc = JSON.parse(JSON.stringify(answer.jingle.contents[1].description.sources[0]));
                        newssrc.ssrc = '' + Math.floor(Math.random() * 0xffffffff); // FIXME: look for conflicts
                        answer.jingle.contents[1].description.sources.push(newssrc);

                        sim.push(answer.jingle.contents[1].description.sources[0].ssrc);
                        sim.push(newssrc.ssrc);
                        groups.push({
                            semantics: 'SIM',
                            sources: sim
                        });

                        // also create an RTX one for the SIM one
                        var rtxssrc = JSON.parse(JSON.stringify(newssrc));
                        rtxssrc.ssrc = '' + Math.floor(Math.random() * 0xffffffff); // FIXME: look for conflicts
                        answer.jingle.contents[1].description.sources.push(rtxssrc);
                        groups.push({
                            semantics: 'FID',
                            sources: [newssrc.ssrc, rtxssrc.ssrc]
                        });

                        answer.jingle.contents[1].description.sourceGroups = groups;
                        answer.sdp = SJJ.toSessionSDP(answer.jingle, {
                            sid: self.config.sdpSessionID,
                            role: self._role(),
                            direction: 'outgoing'
                        });
                    }
                }
            }
            var expandedAnswer = {
                type: 'answer',
                sdp: answer.sdp
            };
            if (self.assumeSetLocalSuccess) {
                // not safe to do when doing simulcast mangling
                self.emit('answer', expandedAnswer);
                cb(null, expandedAnswer);
            }
            self._candidateBuffer = [];
            self.pc.setLocalDescription(answer,
                function () {
                    if (self.config.useJingle) {
                        var jingle = SJJ.toSessionJSON(answer.sdp, {
                            role: self._role(),
                            direction: 'outgoing'
                        });
                        jingle.sid = self.config.sid;
                        self.localDescription = jingle;
                        expandedAnswer.jingle = jingle;
                    }
                    if (self.enableChromeNativeSimulcast) {
                        // native simulcast part 2:
                        // signal multiple tracks to the receiver
                        // for anything in the SIM group
                        if (!expandedAnswer.jingle) {
                            expandedAnswer.jingle = SJJ.toSessionJSON(answer.sdp, {
                                role: self._role(),
                                direction: 'outgoing'
                            });
                        }
                        expandedAnswer.jingle.contents[1].description.sources.forEach(function (source, idx) {
                            // the floor idx/2 is a hack that relies on a particular order
                            // of groups, alternating between sim and rtx
                            source.parameters = source.parameters.map(function (parameter) {
                                if (parameter.key === 'msid') {
                                    parameter.value += '-' + Math.floor(idx / 2);
                                }
                                return parameter;
                            });
                        });
                        expandedAnswer.sdp = SJJ.toSessionSDP(expandedAnswer.jingle, {
                            sid: self.sdpSessionID,
                            role: self._role(),
                            direction: 'outgoing'
                        });
                    }
                    expandedAnswer.sdp.split('\r\n').forEach(function (line) {
                        if (line.indexOf('a=candidate:') === 0) {
                            self._checkLocalCandidate(line);
                        }
                    });
                    if (!self.assumeSetLocalSuccess) {
                        self.emit('answer', expandedAnswer);
                        cb(null, expandedAnswer);
                    }
                },
                function (err) {
                    self.emit('error', err);
                    cb(err);
                }
            );
        },
        function (err) {
            self.emit('error', err);
            cb(err);
        },
        constraints
    );
};

// Internal method for emitting ice candidates on our peer object
PeerConnection.prototype._onIce = function (event) {
    var self = this;
    if (event.candidate) {
        if (this.dontSignalCandidates) return;
        var ice = event.candidate;

        var expandedCandidate = {
            candidate: {
                candidate: ice.candidate,
                sdpMid: ice.sdpMid,
                sdpMLineIndex: ice.sdpMLineIndex
            }
        };
        this._checkLocalCandidate(ice.candidate);

        var cand = SJJ.toCandidateJSON(ice.candidate);

        var already;
        var idx;
        if (this.eliminateDuplicateCandidates && cand.type === 'relay') {
            // drop candidates with same foundation, component
            // take local type pref into account so we don't ignore udp
            // ones when we know about a TCP one. unlikely but...
            already = this._candidateBuffer.filter(
                function (c) {
                    return c.type === 'relay';
                }).map(function (c) {
                    return c.foundation + ':' + c.component;
                }
            );
            idx = already.indexOf(cand.foundation + ':' + cand.component);
            // remember: local type pref of udp is 0, tcp 1, tls 2
            if (idx > -1 && ((cand.priority >> 24) >= (already[idx].priority >> 24))) {
                // drop it, same foundation with higher (worse) type pref
                return;
            }
        }
        if (this.config.bundlePolicy === 'max-bundle') {
            // drop candidates which are duplicate for audio/video/data
            // duplicate means same host/port but different sdpMid
            already = this._candidateBuffer.filter(
                function (c) {
                    return cand.type === c.type;
                }).map(function (cand) {
                    return cand.address + ':' + cand.port;
                }
            );
            idx = already.indexOf(cand.address + ':' + cand.port);
            if (idx > -1) return;
        }
        // also drop rtcp candidates since we know the peer supports RTCP-MUX
        // this is a workaround until browsers implement this natively
        if (this.config.rtcpMuxPolicy === 'require' && cand.component === '2') {
            return;
        }
        this._candidateBuffer.push(cand);

        if (self.config.useJingle) {
            if (!ice.sdpMid) { // firefox doesn't set this
                if (self.pc.remoteDescription && self.pc.remoteDescription.type === 'offer') {
                    // preserve name from remote
                    ice.sdpMid = self.remoteDescription.contents[ice.sdpMLineIndex].name;
                } else {
                    ice.sdpMid = self.localDescription.contents[ice.sdpMLineIndex].name;
                }
            }
            if (!self.config.ice[ice.sdpMid]) {
                var jingle = SJJ.toSessionJSON(self.pc.localDescription.sdp, {
                    role: self._role(),
                    direction: 'outgoing'
                });
                each(jingle.contents, function (content) {
                    var transport = content.transport || {};
                    if (transport.ufrag) {
                        self.config.ice[content.name] = {
                            ufrag: transport.ufrag,
                            pwd: transport.pwd
                        };
                    }
                });
            }
            expandedCandidate.jingle = {
                contents: [{
                    name: ice.sdpMid,
                    creator: self._role(),
                    transport: {
                        transType: 'iceUdp',
                        ufrag: self.config.ice[ice.sdpMid].ufrag,
                        pwd: self.config.ice[ice.sdpMid].pwd,
                        candidates: [
                            cand
                        ]
                    }
                }]
            };
            if (self.batchIceCandidates > 0) {
                if (self.batchedIceCandidates.length === 0) {
                    window.setTimeout(function () {
                        var contents = {};
                        self.batchedIceCandidates.forEach(function (content) {
                            content = content.contents[0];
                            if (!contents[content.name]) contents[content.name] = content;
                            contents[content.name].transport.candidates.push(content.transport.candidates[0]);
                        });
                        var newCand = {
                            jingle: {
                                contents: []
                            }
                        };
                        Object.keys(contents).forEach(function (name) {
                            newCand.jingle.contents.push(contents[name]);
                        });
                        self.batchedIceCandidates = [];
                        self.emit('ice', newCand);
                    }, self.batchIceCandidates);
                }
                self.batchedIceCandidates.push(expandedCandidate.jingle);
                return;
            }

        }
        this.emit('ice', expandedCandidate);
    } else {
        this.emit('endOfCandidates');
    }
};

// Internal method for processing a new data channel being added by the
// other peer.
PeerConnection.prototype._onDataChannel = function (event) {
    // make sure we keep a reference so this doesn't get garbage collected
    var channel = event.channel;
    this._remoteDataChannels.push(channel);

    this.emit('addChannel', channel);
};

// Create a data channel spec reference:
// http://dev.w3.org/2011/webrtc/editor/webrtc.html#idl-def-RTCDataChannelInit
PeerConnection.prototype.createDataChannel = function (name, opts) {
    var channel = this.pc.createDataChannel(name, opts);

    // make sure we keep a reference so this doesn't get garbage collected
    this._localDataChannels.push(channel);

    return channel;
};

// a wrapper around getStats which hides the differences (where possible)
// TODO: remove in favor of adapter.js shim
PeerConnection.prototype.getStats = function (cb) {
    if (adapter.webrtcDetectedBrowser === 'firefox') {
        this.pc.getStats(
            function (res) {
                var items = [];
                for (var result in res) {
                    if (typeof res[result] === 'object') {
                        items.push(res[result]);
                    }
                }
                cb(null, items);
            },
            cb
        );
    } else {
        this.pc.getStats(function (res) {
            var items = [];
            res.result().forEach(function (result) {
                var item = {};
                result.names().forEach(function (name) {
                    item[name] = result.stat(name);
                });
                item.id = result.id;
                item.type = result.type;
                item.timestamp = result.timestamp;
                items.push(item);
            });
            cb(null, items);
        });
    }
};

module.exports = PeerConnection;

},{"lodash.foreach":23,"lodash.pluck":24,"sdp-jingle-json":21,"traceablepeerconnection":22,"util":8,"webrtc-adapter-test":20,"wildemitter":4}],16:[function(require,module,exports){
// getUserMedia helper by @HenrikJoreteg
var adapter = require('webrtc-adapter-test');

module.exports = function (constraints, cb) {
    var options, error;
    var haveOpts = arguments.length === 2;
    var defaultOpts = {video: true, audio: true};

    var denied = 'PermissionDeniedError';
    var altDenied = 'PERMISSION_DENIED';
    var notSatisfied = 'ConstraintNotSatisfiedError';

    // make constraints optional
    if (!haveOpts) {
        cb = constraints;
        constraints = defaultOpts;
    }

    // treat lack of browser support like an error
    if (!navigator.getUserMedia) {
        // throw proper error per spec
        error = new Error('MediaStreamError');
        error.name = 'NotSupportedError';

        // keep all callbacks async
        return window.setTimeout(function () {
            cb(error);
        }, 0);
    }

    // normalize error handling when no media types are requested
    if (!constraints.audio && !constraints.video) {
        error = new Error('MediaStreamError');
        error.name = 'NoMediaRequestedError';

        // keep all callbacks async
        return window.setTimeout(function () {
            cb(error);
        }, 0);
    }

    // testing support
    if (localStorage && localStorage.useFirefoxFakeDevice === "true") {
        constraints.fake = true;
    }

    navigator.getUserMedia(constraints, function (stream) {
        cb(null, stream);
    }, function (err) {
        var error;
        // coerce into an error object since FF gives us a string
        // there are only two valid names according to the spec
        // we coerce all non-denied to "constraint not satisfied".
        if (typeof err === 'string') {
            error = new Error('MediaStreamError');
            if (err === denied || err === altDenied) {
                error.name = denied;
            } else {
                error.name = notSatisfied;
            }
        } else {
            // if we get an error object make sure '.name' property is set
            // according to spec: http://dev.w3.org/2011/webrtc/editor/getusermedia.html#navigatorusermediaerror-and-navigatorusermediaerrorcallback
            error = err;
            if (!error.name) {
                // this is likely chrome which
                // sets a property called "ERROR_DENIED" on the error object
                // if so we make sure to set a name
                if (error[denied]) {
                    err.name = denied;
                } else {
                    err.name = notSatisfied;
                }
            }
        }

        cb(error);
    });
};

},{"webrtc-adapter-test":25}],18:[function(require,module,exports){
var WildEmitter = require('wildemitter');

function getMaxVolume (analyser, fftBins) {
  var maxVolume = -Infinity;
  analyser.getFloatFrequencyData(fftBins);

  for(var i=4, ii=fftBins.length; i < ii; i++) {
    if (fftBins[i] > maxVolume && fftBins[i] < 0) {
      maxVolume = fftBins[i];
    }
  };

  return maxVolume;
}


var audioContextType = window.AudioContext || window.webkitAudioContext;
// use a single audio context due to hardware limits
var audioContext = null;
module.exports = function(stream, options) {
  var harker = new WildEmitter();


  // make it not break in non-supported browsers
  if (!audioContextType) return harker;

  //Config
  var options = options || {},
      smoothing = (options.smoothing || 0.1),
      interval = (options.interval || 50),
      threshold = options.threshold,
      play = options.play,
      history = options.history || 10,
      running = true;

  //Setup Audio Context
  if (!audioContext) {
    audioContext = new audioContextType();
  }
  var sourceNode, fftBins, analyser;

  analyser = audioContext.createAnalyser();
  analyser.fftSize = 512;
  analyser.smoothingTimeConstant = smoothing;
  fftBins = new Float32Array(analyser.fftSize);

  if (stream.jquery) stream = stream[0];
  if (stream instanceof HTMLAudioElement || stream instanceof HTMLVideoElement) {
    //Audio Tag
    sourceNode = audioContext.createMediaElementSource(stream);
    if (typeof play === 'undefined') play = true;
    threshold = threshold || -50;
  } else {
    //WebRTC Stream
    sourceNode = audioContext.createMediaStreamSource(stream);
    threshold = threshold || -50;
  }

  sourceNode.connect(analyser);
  if (play) analyser.connect(audioContext.destination);

  harker.speaking = false;

  harker.setThreshold = function(t) {
    threshold = t;
  };

  harker.setInterval = function(i) {
    interval = i;
  };
  
  harker.stop = function() {
    running = false;
    harker.emit('volume_change', -100, threshold);
    if (harker.speaking) {
      harker.speaking = false;
      harker.emit('stopped_speaking');
    }
  };
  harker.speakingHistory = [];
  for (var i = 0; i < history; i++) {
      harker.speakingHistory.push(0);
  }

  // Poll the analyser node to determine if speaking
  // and emit events if changed
  var looper = function() {
    setTimeout(function() {
    
      //check if stop has been called
      if(!running) {
        return;
      }
      
      var currentVolume = getMaxVolume(analyser, fftBins);

      harker.emit('volume_change', currentVolume, threshold);

      var history = 0;
      if (currentVolume > threshold && !harker.speaking) {
        // trigger quickly, short history
        for (var i = harker.speakingHistory.length - 3; i < harker.speakingHistory.length; i++) {
          history += harker.speakingHistory[i];
        }
        if (history >= 2) {
          harker.speaking = true;
          harker.emit('speaking');
        }
      } else if (currentVolume < threshold && harker.speaking) {
        for (var i = 0; i < harker.speakingHistory.length; i++) {
          history += harker.speakingHistory[i];
        }
        if (history == 0) {
          harker.speaking = false;
          harker.emit('stopped_speaking');
        }
      }
      harker.speakingHistory.shift();
      harker.speakingHistory.push(0 + (currentVolume > threshold));

      looper();
    }, interval);
  };
  looper();


  return harker;
}

},{"wildemitter":26}],25:[function(require,module,exports){
/*
 *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree.
 */

/* More information about these options at jshint.com/docs/options */
/* jshint browser: true, camelcase: true, curly: true, devel: true,
   eqeqeq: true, forin: false, globalstrict: true, node: true,
   quotmark: single, undef: true, unused: strict */
/* global mozRTCIceCandidate, mozRTCPeerConnection, Promise,
mozRTCSessionDescription, webkitRTCPeerConnection, MediaStreamTrack */
/* exported trace,requestUserMedia */

'use strict';

var getUserMedia = null;
var attachMediaStream = null;
var reattachMediaStream = null;
var webrtcDetectedBrowser = null;
var webrtcDetectedVersion = null;
var webrtcMinimumVersion = null;
var webrtcUtils = {
  log: function() {
    // suppress console.log output when being included as a module.
    if (typeof module !== 'undefined' ||
        typeof require === 'function' && typeof define === 'function') {
      return;
    }
    console.log.apply(console, arguments);
  }
};

function trace(text) {
  // This function is used for logging.
  if (text[text.length - 1] === '\n') {
    text = text.substring(0, text.length - 1);
  }
  if (window.performance) {
    var now = (window.performance.now() / 1000).toFixed(3);
    webrtcUtils.log(now + ': ' + text);
  } else {
    webrtcUtils.log(text);
  }
}

if (typeof window === 'object') {
  if (window.HTMLMediaElement &&
    !('srcObject' in window.HTMLMediaElement.prototype)) {
    // Shim the srcObject property, once, when HTMLMediaElement is found.
    Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', {
      get: function() {
        // If prefixed srcObject property exists, return it.
        // Otherwise use the shimmed property, _srcObject
        return 'mozSrcObject' in this ? this.mozSrcObject : this._srcObject;
      },
      set: function(stream) {
        if ('mozSrcObject' in this) {
          this.mozSrcObject = stream;
        } else {
          // Use _srcObject as a private property for this shim
          this._srcObject = stream;
          // TODO: revokeObjectUrl(this.src) when !stream to release resources?
          this.src = URL.createObjectURL(stream);
        }
      }
    });
  }
  // Proxy existing globals
  getUserMedia = window.navigator && window.navigator.getUserMedia;
}

// Attach a media stream to an element.
attachMediaStream = function(element, stream) {
  element.srcObject = stream;
};

reattachMediaStream = function(to, from) {
  to.srcObject = from.srcObject;
};

if (typeof window === 'undefined' || !window.navigator) {
  webrtcUtils.log('This does not appear to be a browser');
  webrtcDetectedBrowser = 'not a browser';
} else if (navigator.mozGetUserMedia && window.mozRTCPeerConnection) {
  webrtcUtils.log('This appears to be Firefox');

  webrtcDetectedBrowser = 'firefox';

  // the detected firefox version.
  webrtcDetectedVersion =
    parseInt(navigator.userAgent.match(/Firefox\/([0-9]+)\./)[1], 10);

  // the minimum firefox version still supported by adapter.
  webrtcMinimumVersion = 31;

  // The RTCPeerConnection object.
  window.RTCPeerConnection = function(pcConfig, pcConstraints) {
    if (webrtcDetectedVersion < 38) {
      // .urls is not supported in FF < 38.
      // create RTCIceServers with a single url.
      if (pcConfig && pcConfig.iceServers) {
        var newIceServers = [];
        for (var i = 0; i < pcConfig.iceServers.length; i++) {
          var server = pcConfig.iceServers[i];
          if (server.hasOwnProperty('urls')) {
            for (var j = 0; j < server.urls.length; j++) {
              var newServer = {
                url: server.urls[j]
              };
              if (server.urls[j].indexOf('turn') === 0) {
                newServer.username = server.username;
                newServer.credential = server.credential;
              }
              newIceServers.push(newServer);
            }
          } else {
            newIceServers.push(pcConfig.iceServers[i]);
          }
        }
        pcConfig.iceServers = newIceServers;
      }
    }
    return new mozRTCPeerConnection(pcConfig, pcConstraints); // jscs:ignore requireCapitalizedConstructors
  };

  // The RTCSessionDescription object.
  window.RTCSessionDescription = mozRTCSessionDescription;

  // The RTCIceCandidate object.
  window.RTCIceCandidate = mozRTCIceCandidate;

  // getUserMedia constraints shim.
  getUserMedia = function(constraints, onSuccess, onError) {
    var constraintsToFF37 = function(c) {
      if (typeof c !== 'object' || c.require) {
        return c;
      }
      var require = [];
      Object.keys(c).forEach(function(key) {
        if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
          return;
        }
        var r = c[key] = (typeof c[key] === 'object') ?
            c[key] : {ideal: c[key]};
        if (r.min !== undefined ||
            r.max !== undefined || r.exact !== undefined) {
          require.push(key);
        }
        if (r.exact !== undefined) {
          if (typeof r.exact === 'number') {
            r.min = r.max = r.exact;
          } else {
            c[key] = r.exact;
          }
          delete r.exact;
        }
        if (r.ideal !== undefined) {
          c.advanced = c.advanced || [];
          var oc = {};
          if (typeof r.ideal === 'number') {
            oc[key] = {min: r.ideal, max: r.ideal};
          } else {
            oc[key] = r.ideal;
          }
          c.advanced.push(oc);
          delete r.ideal;
          if (!Object.keys(r).length) {
            delete c[key];
          }
        }
      });
      if (require.length) {
        c.require = require;
      }
      return c;
    };
    if (webrtcDetectedVersion < 38) {
      webrtcUtils.log('spec: ' + JSON.stringify(constraints));
      if (constraints.audio) {
        constraints.audio = constraintsToFF37(constraints.audio);
      }
      if (constraints.video) {
        constraints.video = constraintsToFF37(constraints.video);
      }
      webrtcUtils.log('ff37: ' + JSON.stringify(constraints));
    }
    return navigator.mozGetUserMedia(constraints, onSuccess, onError);
  };

  navigator.getUserMedia = getUserMedia;

  // Shim for mediaDevices on older versions.
  if (!navigator.mediaDevices) {
    navigator.mediaDevices = {getUserMedia: requestUserMedia,
      addEventListener: function() { },
      removeEventListener: function() { }
    };
  }
  navigator.mediaDevices.enumerateDevices =
      navigator.mediaDevices.enumerateDevices || function() {
    return new Promise(function(resolve) {
      var infos = [
        {kind: 'audioinput', deviceId: 'default', label: '', groupId: ''},
        {kind: 'videoinput', deviceId: 'default', label: '', groupId: ''}
      ];
      resolve(infos);
    });
  };

  if (webrtcDetectedVersion < 41) {
    // Work around http://bugzil.la/1169665
    var orgEnumerateDevices =
        navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);
    navigator.mediaDevices.enumerateDevices = function() {
      return orgEnumerateDevices().catch(function(e) {
        if (e.name === 'NotFoundError') {
          return [];
        }
        throw e;
      });
    };
  }
} else if (navigator.webkitGetUserMedia && !!window.chrome) {
  webrtcUtils.log('This appears to be Chrome');

  webrtcDetectedBrowser = 'chrome';

  // the detected chrome version.
  webrtcDetectedVersion =
    parseInt(navigator.userAgent.match(/Chrom(e|ium)\/([0-9]+)\./)[2], 10);

  // the minimum chrome version still supported by adapter.
  webrtcMinimumVersion = 38;

  // The RTCPeerConnection object.
  window.RTCPeerConnection = function(pcConfig, pcConstraints) {
    // Translate iceTransportPolicy to iceTransports,
    // see https://code.google.com/p/webrtc/issues/detail?id=4869
    if (pcConfig && pcConfig.iceTransportPolicy) {
      pcConfig.iceTransports = pcConfig.iceTransportPolicy;
    }

    var pc = new webkitRTCPeerConnection(pcConfig, pcConstraints); // jscs:ignore requireCapitalizedConstructors
    var origGetStats = pc.getStats.bind(pc);
    pc.getStats = function(selector, successCallback, errorCallback) { // jshint ignore: line
      var self = this;
      var args = arguments;

      // If selector is a function then we are in the old style stats so just
      // pass back the original getStats format to avoid breaking old users.
      if (arguments.length > 0 && typeof selector === 'function') {
        return origGetStats(selector, successCallback);
      }

      var fixChromeStats = function(response) {
        var standardReport = {};
        var reports = response.result();
        reports.forEach(function(report) {
          var standardStats = {
            id: report.id,
            timestamp: report.timestamp,
            type: report.type
          };
          report.names().forEach(function(name) {
            standardStats[name] = report.stat(name);
          });
          standardReport[standardStats.id] = standardStats;
        });

        return standardReport;
      };

      if (arguments.length >= 2) {
        var successCallbackWrapper = function(response) {
          args[1](fixChromeStats(response));
        };

        return origGetStats.apply(this, [successCallbackWrapper, arguments[0]]);
      }

      // promise-support
      return new Promise(function(resolve, reject) {
        if (args.length === 1 && selector === null) {
          origGetStats.apply(self, [
              function(response) {
                resolve.apply(null, [fixChromeStats(response)]);
              }, reject]);
        } else {
          origGetStats.apply(self, [resolve, reject]);
        }
      });
    };

    return pc;
  };

  // add promise support
  ['createOffer', 'createAnswer'].forEach(function(method) {
    var nativeMethod = webkitRTCPeerConnection.prototype[method];
    webkitRTCPeerConnection.prototype[method] = function() {
      var self = this;
      if (arguments.length < 1 || (arguments.length === 1 &&
          typeof(arguments[0]) === 'object')) {
        var opts = arguments.length === 1 ? arguments[0] : undefined;
        return new Promise(function(resolve, reject) {
          nativeMethod.apply(self, [resolve, reject, opts]);
        });
      } else {
        return nativeMethod.apply(this, arguments);
      }
    };
  });

  ['setLocalDescription', 'setRemoteDescription',
      'addIceCandidate'].forEach(function(method) {
    var nativeMethod = webkitRTCPeerConnection.prototype[method];
    webkitRTCPeerConnection.prototype[method] = function() {
      var args = arguments;
      var self = this;
      return new Promise(function(resolve, reject) {
        nativeMethod.apply(self, [args[0],
            function() {
              resolve();
              if (args.length >= 2) {
                args[1].apply(null, []);
              }
            },
            function(err) {
              reject(err);
              if (args.length >= 3) {
                args[2].apply(null, [err]);
              }
            }]
          );
      });
    };
  });

  // getUserMedia constraints shim.
  var constraintsToChrome = function(c) {
    if (typeof c !== 'object' || c.mandatory || c.optional) {
      return c;
    }
    var cc = {};
    Object.keys(c).forEach(function(key) {
      if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
        return;
      }
      var r = (typeof c[key] === 'object') ? c[key] : {ideal: c[key]};
      if (r.exact !== undefined && typeof r.exact === 'number') {
        r.min = r.max = r.exact;
      }
      var oldname = function(prefix, name) {
        if (prefix) {
          return prefix + name.charAt(0).toUpperCase() + name.slice(1);
        }
        return (name === 'deviceId') ? 'sourceId' : name;
      };
      if (r.ideal !== undefined) {
        cc.optional = cc.optional || [];
        var oc = {};
        if (typeof r.ideal === 'number') {
          oc[oldname('min', key)] = r.ideal;
          cc.optional.push(oc);
          oc = {};
          oc[oldname('max', key)] = r.ideal;
          cc.optional.push(oc);
        } else {
          oc[oldname('', key)] = r.ideal;
          cc.optional.push(oc);
        }
      }
      if (r.exact !== undefined && typeof r.exact !== 'number') {
        cc.mandatory = cc.mandatory || {};
        cc.mandatory[oldname('', key)] = r.exact;
      } else {
        ['min', 'max'].forEach(function(mix) {
          if (r[mix] !== undefined) {
            cc.mandatory = cc.mandatory || {};
            cc.mandatory[oldname(mix, key)] = r[mix];
          }
        });
      }
    });
    if (c.advanced) {
      cc.optional = (cc.optional || []).concat(c.advanced);
    }
    return cc;
  };

  getUserMedia = function(constraints, onSuccess, onError) {
    if (constraints.audio) {
      constraints.audio = constraintsToChrome(constraints.audio);
    }
    if (constraints.video) {
      constraints.video = constraintsToChrome(constraints.video);
    }
    webrtcUtils.log('chrome: ' + JSON.stringify(constraints));
    return navigator.webkitGetUserMedia(constraints, onSuccess, onError);
  };
  navigator.getUserMedia = getUserMedia;

  if (!navigator.mediaDevices) {
    navigator.mediaDevices = {getUserMedia: requestUserMedia,
                              enumerateDevices: function() {
      return new Promise(function(resolve) {
        var kinds = {audio: 'audioinput', video: 'videoinput'};
        return MediaStreamTrack.getSources(function(devices) {
          resolve(devices.map(function(device) {
            return {label: device.label,
                    kind: kinds[device.kind],
                    deviceId: device.id,
                    groupId: ''};
          }));
        });
      });
    }};
  }

  // A shim for getUserMedia method on the mediaDevices object.
  // TODO(KaptenJansson) remove once implemented in Chrome stable.
  if (!navigator.mediaDevices.getUserMedia) {
    navigator.mediaDevices.getUserMedia = function(constraints) {
      return requestUserMedia(constraints);
    };
  } else {
    // Even though Chrome 45 has navigator.mediaDevices and a getUserMedia
    // function which returns a Promise, it does not accept spec-style
    // constraints.
    var origGetUserMedia = navigator.mediaDevices.getUserMedia.
        bind(navigator.mediaDevices);
    navigator.mediaDevices.getUserMedia = function(c) {
      webrtcUtils.log('spec:   ' + JSON.stringify(c)); // whitespace for alignment
      c.audio = constraintsToChrome(c.audio);
      c.video = constraintsToChrome(c.video);
      webrtcUtils.log('chrome: ' + JSON.stringify(c));
      return origGetUserMedia(c);
    };
  }

  // Dummy devicechange event methods.
  // TODO(KaptenJansson) remove once implemented in Chrome stable.
  if (typeof navigator.mediaDevices.addEventListener === 'undefined') {
    navigator.mediaDevices.addEventListener = function() {
      webrtcUtils.log('Dummy mediaDevices.addEventListener called.');
    };
  }
  if (typeof navigator.mediaDevices.removeEventListener === 'undefined') {
    navigator.mediaDevices.removeEventListener = function() {
      webrtcUtils.log('Dummy mediaDevices.removeEventListener called.');
    };
  }

  // Attach a media stream to an element.
  attachMediaStream = function(element, stream) {
    if (webrtcDetectedVersion >= 43) {
      element.srcObject = stream;
    } else if (typeof element.src !== 'undefined') {
      element.src = URL.createObjectURL(stream);
    } else {
      webrtcUtils.log('Error attaching stream to element.');
    }
  };
  reattachMediaStream = function(to, from) {
    if (webrtcDetectedVersion >= 43) {
      to.srcObject = from.srcObject;
    } else {
      to.src = from.src;
    }
  };

} else if (navigator.mediaDevices && navigator.userAgent.match(
    /Edge\/(\d+).(\d+)$/)) {
  webrtcUtils.log('This appears to be Edge');
  webrtcDetectedBrowser = 'edge';

  webrtcDetectedVersion =
    parseInt(navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)[2], 10);

  // the minimum version still supported by adapter.
  webrtcMinimumVersion = 12;
} else {
  webrtcUtils.log('Browser does not appear to be WebRTC-capable');
}

// Returns the result of getUserMedia as a Promise.
function requestUserMedia(constraints) {
  return new Promise(function(resolve, reject) {
    getUserMedia(constraints, resolve, reject);
  });
}

var webrtcTesting = {};
Object.defineProperty(webrtcTesting, 'version', {
  set: function(version) {
    webrtcDetectedVersion = version;
  }
});

if (typeof module !== 'undefined') {
  var RTCPeerConnection;
  if (typeof window !== 'undefined') {
    RTCPeerConnection = window.RTCPeerConnection;
  }
  module.exports = {
    RTCPeerConnection: RTCPeerConnection,
    getUserMedia: getUserMedia,
    attachMediaStream: attachMediaStream,
    reattachMediaStream: reattachMediaStream,
    webrtcDetectedBrowser: webrtcDetectedBrowser,
    webrtcDetectedVersion: webrtcDetectedVersion,
    webrtcMinimumVersion: webrtcMinimumVersion,
    webrtcTesting: webrtcTesting
    //requestUserMedia: not exposed on purpose.
    //trace: not exposed on purpose.
  };
} else if ((typeof require === 'function') && (typeof define === 'function')) {
  // Expose objects and functions when RequireJS is doing the loading.
  define([], function() {
    return {
      RTCPeerConnection: window.RTCPeerConnection,
      getUserMedia: getUserMedia,
      attachMediaStream: attachMediaStream,
      reattachMediaStream: reattachMediaStream,
      webrtcDetectedBrowser: webrtcDetectedBrowser,
      webrtcDetectedVersion: webrtcDetectedVersion,
      webrtcMinimumVersion: webrtcMinimumVersion,
      webrtcTesting: webrtcTesting
      //requestUserMedia: not exposed on purpose.
      //trace: not exposed on purpose.
    };
  });
}

},{}],26:[function(require,module,exports){
/*
WildEmitter.js is a slim little event emitter by @henrikjoreteg largely based 
on @visionmedia's Emitter from UI Kit.

Why? I wanted it standalone.

I also wanted support for wildcard emitters like this:

emitter.on('*', function (eventName, other, event, payloads) {
    
});

emitter.on('somenamespace*', function (eventName, payloads) {
    
});

Please note that callbacks triggered by wildcard registered events also get 
the event name as the first argument.
*/
module.exports = WildEmitter;

function WildEmitter() {
    this.callbacks = {};
}

// Listen on the given `event` with `fn`. Store a group name if present.
WildEmitter.prototype.on = function (event, groupName, fn) {
    var hasGroup = (arguments.length === 3),
        group = hasGroup ? arguments[1] : undefined,
        func = hasGroup ? arguments[2] : arguments[1];
    func._groupName = group;
    (this.callbacks[event] = this.callbacks[event] || []).push(func);
    return this;
};

// Adds an `event` listener that will be invoked a single
// time then automatically removed.
WildEmitter.prototype.once = function (event, groupName, fn) {
    var self = this,
        hasGroup = (arguments.length === 3),
        group = hasGroup ? arguments[1] : undefined,
        func = hasGroup ? arguments[2] : arguments[1];
    function on() {
        self.off(event, on);
        func.apply(this, arguments);
    }
    this.on(event, group, on);
    return this;
};

// Unbinds an entire group
WildEmitter.prototype.releaseGroup = function (groupName) {
    var item, i, len, handlers;
    for (item in this.callbacks) {
        handlers = this.callbacks[item];
        for (i = 0, len = handlers.length; i < len; i++) {
            if (handlers[i]._groupName === groupName) {
                //console.log('removing');
                // remove it and shorten the array we're looping through
                handlers.splice(i, 1);
                i--;
                len--;
            }
        }
    }
    return this;
};

// Remove the given callback for `event` or all
// registered callbacks.
WildEmitter.prototype.off = function (event, fn) {
    var callbacks = this.callbacks[event],
        i;

    if (!callbacks) return this;

    // remove all handlers
    if (arguments.length === 1) {
        delete this.callbacks[event];
        return this;
    }

    // remove specific handler
    i = callbacks.indexOf(fn);
    callbacks.splice(i, 1);
    if (callbacks.length === 0) {
        delete this.callbacks[event];
    }
    return this;
};

/// Emit `event` with the given args.
// also calls any `*` handlers
WildEmitter.prototype.emit = function (event) {
    var args = [].slice.call(arguments, 1),
        callbacks = this.callbacks[event],
        specialCallbacks = this.getWildcardCallbacks(event),
        i,
        len,
        item,
        listeners;

    if (callbacks) {
        listeners = callbacks.slice();
        for (i = 0, len = listeners.length; i < len; ++i) {
            if (listeners[i]) {
                listeners[i].apply(this, args);
            } else {
                break;
            }
        }
    }

    if (specialCallbacks) {
        len = specialCallbacks.length;
        listeners = specialCallbacks.slice();
        for (i = 0, len = listeners.length; i < len; ++i) {
            if (listeners[i]) {
                listeners[i].apply(this, [event].concat(args));
            } else {
                break;
            }
        }
    }

    return this;
};

// Helper for for finding special wildcard event handlers that match the event
WildEmitter.prototype.getWildcardCallbacks = function (eventName) {
    var item,
        split,
        result = [];

    for (item in this.callbacks) {
        split = item.split('*');
        if (item === '*' || (split.length === 2 && eventName.slice(0, split[0].length) === split[0])) {
            result = result.concat(this.callbacks[item]);
        }
    }
    return result;
};

},{}],21:[function(require,module,exports){
var toSDP = require('./lib/tosdp');
var toJSON = require('./lib/tojson');


// Converstion from JSON to SDP

exports.toIncomingSDPOffer = function (session) {
    return toSDP.toSessionSDP(session, {
        role: 'responder',
        direction: 'incoming'
    });
};
exports.toOutgoingSDPOffer = function (session) {
    return toSDP.toSessionSDP(session, {
        role: 'initiator',
        direction: 'outgoing'
    });
};
exports.toIncomingSDPAnswer = function (session) {
    return toSDP.toSessionSDP(session, {
        role: 'initiator',
        direction: 'incoming'
    });
};
exports.toOutgoingSDPAnswer = function (session) {
    return toSDP.toSessionSDP(session, {
        role: 'responder',
        direction: 'outgoing'
    });
};
exports.toIncomingMediaSDPOffer = function (media) {
    return toSDP.toMediaSDP(media, {
        role: 'responder',
        direction: 'incoming'
    });
};
exports.toOutgoingMediaSDPOffer = function (media) {
    return toSDP.toMediaSDP(media, {
        role: 'initiator',
        direction: 'outgoing'
    });
};
exports.toIncomingMediaSDPAnswer = function (media) {
    return toSDP.toMediaSDP(media, {
        role: 'initiator',
        direction: 'incoming'
    });
};
exports.toOutgoingMediaSDPAnswer = function (media) {
    return toSDP.toMediaSDP(media, {
        role: 'responder',
        direction: 'outgoing'
    });
};
exports.toCandidateSDP = toSDP.toCandidateSDP;
exports.toMediaSDP = toSDP.toMediaSDP;
exports.toSessionSDP = toSDP.toSessionSDP;


// Conversion from SDP to JSON

exports.toIncomingJSONOffer = function (sdp, creators) {
    return toJSON.toSessionJSON(sdp, {
        role: 'responder',
        direction: 'incoming',
        creators: creators
    });
};
exports.toOutgoingJSONOffer = function (sdp, creators) {
    return toJSON.toSessionJSON(sdp, {
        role: 'initiator',
        direction: 'outgoing',
        creators: creators
    });
};
exports.toIncomingJSONAnswer = function (sdp, creators) {
    return toJSON.toSessionJSON(sdp, {
        role: 'initiator',
        direction: 'incoming',
        creators: creators
    });
};
exports.toOutgoingJSONAnswer = function (sdp, creators) {
    return toJSON.toSessionJSON(sdp, {
        role: 'responder',
        direction: 'outgoing',
        creators: creators
    });
};
exports.toIncomingMediaJSONOffer = function (sdp, creator) {
    return toJSON.toMediaJSON(sdp, {
        role: 'responder',
        direction: 'incoming',
        creator: creator
    });
};
exports.toOutgoingMediaJSONOffer = function (sdp, creator) {
    return toJSON.toMediaJSON(sdp, {
        role: 'initiator',
        direction: 'outgoing',
        creator: creator
    });
};
exports.toIncomingMediaJSONAnswer = function (sdp, creator) {
    return toJSON.toMediaJSON(sdp, {
        role: 'initiator',
        direction: 'incoming',
        creator: creator
    });
};
exports.toOutgoingMediaJSONAnswer = function (sdp, creator) {
    return toJSON.toMediaJSON(sdp, {
        role: 'responder',
        direction: 'outgoing',
        creator: creator
    });
};
exports.toCandidateJSON = toJSON.toCandidateJSON;
exports.toMediaJSON = toJSON.toMediaJSON;
exports.toSessionJSON = toJSON.toSessionJSON;

},{"./lib/tojson":28,"./lib/tosdp":27}],17:[function(require,module,exports){
// getScreenMedia helper by @HenrikJoreteg
var getUserMedia = require('getusermedia');

// cache for constraints and callback
var cache = {};

module.exports = function (constraints, cb) {
    var hasConstraints = arguments.length === 2;
    var callback = hasConstraints ? cb : constraints;
    var error;

    if (typeof window === 'undefined' || window.location.protocol === 'http:') {
        error = new Error('NavigatorUserMediaError');
        error.name = 'HTTPS_REQUIRED';
        return callback(error);
    }

    if (window.navigator.userAgent.match('Chrome')) {
        var chromever = parseInt(window.navigator.userAgent.match(/Chrome\/(.*) /)[1], 10);
        var maxver = 33;
        var isCef = !window.chrome.webstore;
        // "known" crash in chrome 34 and 35 on linux
        if (window.navigator.userAgent.match('Linux')) maxver = 35;

        // check that the extension is installed by looking for a
        // sessionStorage variable that contains the extension id
        // this has to be set after installation unless the contest
        // script does that
        if (sessionStorage.getScreenMediaJSExtensionId) {
            chrome.runtime.sendMessage(sessionStorage.getScreenMediaJSExtensionId,
                {type:'getScreen', id: 1}, null,
                function (data) {
                    if (data.sourceId === '') { // user canceled
                        var error = new Error('NavigatorUserMediaError');
                        error.name = 'PERMISSION_DENIED';
                        callback(error);
                    } else {
                        constraints = (hasConstraints && constraints) || {audio: false, video: {
                            mandatory: {
                                chromeMediaSource: 'desktop',
                                maxWidth: window.screen.width,
                                maxHeight: window.screen.height,
                                maxFrameRate: 3
                            },
                            optional: [
                                {googLeakyBucket: true},
                                {googTemporalLayeredScreencast: true}
                            ]
                        }};
                        constraints.video.mandatory.chromeMediaSourceId = data.sourceId;
                        getUserMedia(constraints, callback);
                    }
                }
            );
        } else if (window.cefGetScreenMedia) {
            //window.cefGetScreenMedia is experimental - may be removed without notice
            window.cefGetScreenMedia(function(sourceId) {
                if (!sourceId) {
                    var error = new Error('cefGetScreenMediaError');
                    error.name = 'CEF_GETSCREENMEDIA_CANCELED';
                    callback(error);
                } else {
                    constraints = (hasConstraints && constraints) || {audio: false, video: {
                        mandatory: {
                            chromeMediaSource: 'desktop',
                            maxWidth: window.screen.width,
                            maxHeight: window.screen.height,
                            maxFrameRate: 3
                        },
                        optional: [
                            {googLeakyBucket: true},
                            {googTemporalLayeredScreencast: true}
                        ]
                    }};
                    constraints.video.mandatory.chromeMediaSourceId = sourceId;
                    getUserMedia(constraints, callback);
                }
            });
        } else if (isCef || (chromever >= 26 && chromever <= maxver)) {
            // chrome 26 - chrome 33 way to do it -- requires bad chrome://flags
            // note: this is basically in maintenance mode and will go away soon
            constraints = (hasConstraints && constraints) || {
                video: {
                    mandatory: {
                        googLeakyBucket: true,
                        maxWidth: window.screen.width,
                        maxHeight: window.screen.height,
                        maxFrameRate: 3,
                        chromeMediaSource: 'screen'
                    }
                }
            };
            getUserMedia(constraints, callback);
        } else {
            // chrome 34+ way requiring an extension
            var pending = window.setTimeout(function () {
                error = new Error('NavigatorUserMediaError');
                error.name = 'EXTENSION_UNAVAILABLE';
                return callback(error);
            }, 1000);
            cache[pending] = [callback, hasConstraints ? constraint : null];
            window.postMessage({ type: 'getScreen', id: pending }, '*');
        }
    } else if (window.navigator.userAgent.match('Firefox')) {
        var ffver = parseInt(window.navigator.userAgent.match(/Firefox\/(.*)/)[1], 10);
        if (ffver >= 33) {
            constraints = (hasConstraints && constraints) || {
                video: {
                    mozMediaSource: 'window',
                    mediaSource: 'window'
                }
            }
            getUserMedia(constraints, function (err, stream) {
                callback(err, stream);
                // workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=1045810
                if (!err) {
                    var lastTime = stream.currentTime;
                    var polly = window.setInterval(function () {
                        if (!stream) window.clearInterval(polly);
                        if (stream.currentTime == lastTime) {
                            window.clearInterval(polly);
                            if (stream.onended) {
                                stream.onended();
                            }
                        }
                        lastTime = stream.currentTime;
                    }, 500);
                }
            });
        } else {
            error = new Error('NavigatorUserMediaError');
            error.name = 'EXTENSION_UNAVAILABLE'; // does not make much sense but...
        }
    }
};

window.addEventListener('message', function (event) {
    if (event.origin != window.location.origin) {
        return;
    }
    if (event.data.type == 'gotScreen' && cache[event.data.id]) {
        var data = cache[event.data.id];
        var constraints = data[1];
        var callback = data[0];
        delete cache[event.data.id];

        if (event.data.sourceId === '') { // user canceled
            var error = new Error('NavigatorUserMediaError');
            error.name = 'PERMISSION_DENIED';
            callback(error);
        } else {
            constraints = constraints || {audio: false, video: {
                mandatory: {
                    chromeMediaSource: 'desktop',
                    maxWidth: window.screen.width,
                    maxHeight: window.screen.height,
                    maxFrameRate: 3
                },
                optional: [
                    {googLeakyBucket: true},
                    {googTemporalLayeredScreencast: true}
                ]
            }};
            constraints.video.mandatory.chromeMediaSourceId = event.data.sourceId;
            getUserMedia(constraints, callback);
        }
    } else if (event.data.type == 'getScreenPending') {
        window.clearTimeout(event.data.id);
    }
});

},{"getusermedia":16}],19:[function(require,module,exports){
var support = require('webrtcsupport');


function GainController(stream) {
    this.support = support.webAudio && support.mediaStream;

    // set our starting value
    this.gain = 1;

    if (this.support) {
        var context = this.context = new support.AudioContext();
        this.microphone = context.createMediaStreamSource(stream);
        this.gainFilter = context.createGain();
        this.destination = context.createMediaStreamDestination();
        this.outputStream = this.destination.stream;
        this.microphone.connect(this.gainFilter);
        this.gainFilter.connect(this.destination);
        stream.addTrack(this.outputStream.getAudioTracks()[0]);
        stream.removeTrack(stream.getAudioTracks()[0]);
    }
    this.stream = stream;
}

// setting
GainController.prototype.setGain = function (val) {
    // check for support
    if (!this.support) return;
    this.gainFilter.gain.value = val;
    this.gain = val;
};

GainController.prototype.getGain = function () {
    return this.gain;
};

GainController.prototype.off = function () {
    return this.setGain(0);
};

GainController.prototype.on = function () {
    this.setGain(1);
};


module.exports = GainController;

},{"webrtcsupport":5}],23:[function(require,module,exports){
/**
 * lodash 3.0.3 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var arrayEach = require('lodash._arrayeach'),
    baseEach = require('lodash._baseeach'),
    bindCallback = require('lodash._bindcallback'),
    isArray = require('lodash.isarray');

/**
 * Creates a function for `_.forEach` or `_.forEachRight`.
 *
 * @private
 * @param {Function} arrayFunc The function to iterate over an array.
 * @param {Function} eachFunc The function to iterate over a collection.
 * @returns {Function} Returns the new each function.
 */
function createForEach(arrayFunc, eachFunc) {
  return function(collection, iteratee, thisArg) {
    return (typeof iteratee == 'function' && thisArg === undefined && isArray(collection))
      ? arrayFunc(collection, iteratee)
      : eachFunc(collection, bindCallback(iteratee, thisArg, 3));
  };
}

/**
 * Iterates over elements of `collection` invoking `iteratee` for each element.
 * The `iteratee` is bound to `thisArg` and invoked with three arguments:
 * (value, index|key, collection). Iteratee functions may exit iteration early
 * by explicitly returning `false`.
 *
 * **Note:** As with other "Collections" methods, objects with a "length" property
 * are iterated like arrays. To avoid this behavior `_.forIn` or `_.forOwn`
 * may be used for object iteration.
 *
 * @static
 * @memberOf _
 * @alias each
 * @category Collection
 * @param {Array|Object|string} collection The collection to iterate over.
 * @param {Function} [iteratee=_.identity] The function invoked per iteration.
 * @param {*} [thisArg] The `this` binding of `iteratee`.
 * @returns {Array|Object|string} Returns `collection`.
 * @example
 *
 * _([1, 2]).forEach(function(n) {
 *   console.log(n);
 * }).value();
 * // => logs each value from left to right and returns the array
 *
 * _.forEach({ 'a': 1, 'b': 2 }, function(n, key) {
 *   console.log(n, key);
 * });
 * // => logs each value-key pair and returns the object (iteration order is not guaranteed)
 */
var forEach = createForEach(arrayEach, baseEach);

module.exports = forEach;

},{"lodash._arrayeach":29,"lodash._baseeach":30,"lodash._bindcallback":31,"lodash.isarray":32}],24:[function(require,module,exports){
/**
 * lodash 3.1.2 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var baseGet = require('lodash._baseget'),
    toPath = require('lodash._topath'),
    isArray = require('lodash.isarray'),
    map = require('lodash.map');

/** Used to match property names within property paths. */
var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\n\\]|\\.)*?\1)\]/,
    reIsPlainProp = /^\w*$/;

/**
 * The base implementation of `_.property` without support for deep paths.
 *
 * @private
 * @param {string} key The key of the property to get.
 * @returns {Function} Returns the new function.
 */
function baseProperty(key) {
  return function(object) {
    return object == null ? undefined : object[key];
  };
}

/**
 * A specialized version of `baseProperty` which supports deep paths.
 *
 * @private
 * @param {Array|string} path The path of the property to get.
 * @returns {Function} Returns the new function.
 */
function basePropertyDeep(path) {
  var pathKey = (path + '');
  path = toPath(path);
  return function(object) {
    return baseGet(object, path, pathKey);
  };
}

/**
 * Checks if `value` is a property name and not a property path.
 *
 * @private
 * @param {*} value The value to check.
 * @param {Object} [object] The object to query keys on.
 * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
 */
function isKey(value, object) {
  var type = typeof value;
  if ((type == 'string' && reIsPlainProp.test(value)) || type == 'number') {
    return true;
  }
  if (isArray(value)) {
    return false;
  }
  var result = !reIsDeepProp.test(value);
  return result || (object != null && value in toObject(object));
}

/**
 * Converts `value` to an object if it's not one.
 *
 * @private
 * @param {*} value The value to process.
 * @returns {Object} Returns the object.
 */
function toObject(value) {
  return isObject(value) ? value : Object(value);
}

/**
 * Gets the property value of `path` from all elements in `collection`.
 *
 * @static
 * @memberOf _
 * @category Collection
 * @param {Array|Object|string} collection The collection to iterate over.
 * @param {Array|string} path The path of the property to pluck.
 * @returns {Array} Returns the property values.
 * @example
 *
 * var users = [
 *   { 'user': 'barney', 'age': 36 },
 *   { 'user': 'fred',   'age': 40 }
 * ];
 *
 * _.pluck(users, 'user');
 * // => ['barney', 'fred']
 *
 * var userIndex = _.indexBy(users, 'user');
 * _.pluck(userIndex, 'age');
 * // => [36, 40] (iteration order is not guaranteed)
 */
function pluck(collection, path) {
  return map(collection, property(path));
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

/**
 * Creates a function which returns the property value at `path` on a
 * given object.
 *
 * @static
 * @memberOf _
 * @category Utility
 * @param {Array|string} path The path of the property to get.
 * @returns {Function} Returns the new function.
 * @example
 *
 * var objects = [
 *   { 'a': { 'b': { 'c': 2 } } },
 *   { 'a': { 'b': { 'c': 1 } } }
 * ];
 *
 * _.map(objects, _.property('a.b.c'));
 * // => [2, 1]
 *
 * _.pluck(_.sortBy(objects, _.property(['a', 'b', 'c'])), 'a.b.c');
 * // => [1, 2]
 */
function property(path) {
  return isKey(path) ? baseProperty(path) : basePropertyDeep(path);
}

module.exports = pluck;

},{"lodash._baseget":33,"lodash._topath":34,"lodash.isarray":35,"lodash.map":36}],27:[function(require,module,exports){
var SENDERS = require('./senders');


exports.toSessionSDP = function (session, opts) {
    var role = opts.role || 'initiator';
    var direction = opts.direction || 'outgoing';
    var sid = opts.sid || session.sid || Date.now();
    var time = opts.time || Date.now();

    var sdp = [
        'v=0',
        'o=- ' + sid + ' ' + time + ' IN IP4 0.0.0.0',
        's=-',
        't=0 0',
        'a=msid-semantic: WMS *'
    ];

    var groups = session.groups || [];
    groups.forEach(function (group) {
        sdp.push('a=group:' + group.semantics + ' ' + group.contents.join(' '));
    });

    var contents = session.contents || [];
    contents.forEach(function (content) {
        sdp.push(exports.toMediaSDP(content, opts));
    });

    return sdp.join('\r\n') + '\r\n';
};

exports.toMediaSDP = function (content, opts) {
    var sdp = [];

    var role = opts.role || 'initiator';
    var direction = opts.direction || 'outgoing';

    var desc = content.description;
    var transport = content.transport;
    var payloads = desc.payloads || [];
    var fingerprints = (transport && transport.fingerprints) || [];

    var mline = [];
    if (desc.descType == 'datachannel') {
        mline.push('application');
        mline.push('1');
        mline.push('DTLS/SCTP');
        if (transport.sctp) {
            transport.sctp.forEach(function (map) {
                mline.push(map.number);
            });
        }
    } else {
        mline.push(desc.media);
        mline.push('1');
        if ((desc.encryption && desc.encryption.length > 0) || (fingerprints.length > 0)) {
            mline.push('RTP/SAVPF');
        } else {
            mline.push('RTP/AVPF');
        }
        payloads.forEach(function (payload) {
            mline.push(payload.id);
        });
    }


    sdp.push('m=' + mline.join(' '));

    sdp.push('c=IN IP4 0.0.0.0');
    if (desc.bandwidth && desc.bandwidth.type && desc.bandwidth.bandwidth) {
        sdp.push('b=' + desc.bandwidth.type + ':' + desc.bandwidth.bandwidth);
    }
    if (desc.descType == 'rtp') {
        sdp.push('a=rtcp:1 IN IP4 0.0.0.0');
    }

    if (transport) {
        if (transport.ufrag) {
            sdp.push('a=ice-ufrag:' + transport.ufrag);
        }
        if (transport.pwd) {
            sdp.push('a=ice-pwd:' + transport.pwd);
        }

        var pushedSetup = false;
        fingerprints.forEach(function (fingerprint) {
            sdp.push('a=fingerprint:' + fingerprint.hash + ' ' + fingerprint.value);
            if (fingerprint.setup && !pushedSetup) {
                sdp.push('a=setup:' + fingerprint.setup);
            }
        });

        if (transport.sctp) {
            transport.sctp.forEach(function (map) {
                sdp.push('a=sctpmap:' + map.number + ' ' + map.protocol + ' ' + map.streams);
            });
        }
    }

    if (desc.descType == 'rtp') {
        sdp.push('a=' + (SENDERS[role][direction][content.senders] || 'sendrecv'));
    }
    sdp.push('a=mid:' + content.name);

    if (desc.sources && desc.sources.length) {
        (desc.sources[0].parameters || []).forEach(function (param) {
            if (param.key === 'msid') {
                sdp.push('a=msid:' + param.value);
            }
        });
    }

    if (desc.mux) {
        sdp.push('a=rtcp-mux');
    }

    var encryption = desc.encryption || [];
    encryption.forEach(function (crypto) {
        sdp.push('a=crypto:' + crypto.tag + ' ' + crypto.cipherSuite + ' ' + crypto.keyParams + (crypto.sessionParams ? ' ' + crypto.sessionParams : ''));
    });
    if (desc.googConferenceFlag) {
        sdp.push('a=x-google-flag:conference');
    }

    payloads.forEach(function (payload) {
        var rtpmap = 'a=rtpmap:' + payload.id + ' ' + payload.name + '/' + payload.clockrate;
        if (payload.channels && payload.channels != '1') {
            rtpmap += '/' + payload.channels;
        }
        sdp.push(rtpmap);

        if (payload.parameters && payload.parameters.length) {
            var fmtp = ['a=fmtp:' + payload.id];
            var parameters = [];
            payload.parameters.forEach(function (param) {
                parameters.push((param.key ? param.key + '=' : '') + param.value);
            });
            fmtp.push(parameters.join(';'));
            sdp.push(fmtp.join(' '));
        }

        if (payload.feedback) {
            payload.feedback.forEach(function (fb) {
                if (fb.type === 'trr-int') {
                    sdp.push('a=rtcp-fb:' + payload.id + ' trr-int ' + (fb.value ? fb.value : '0'));
                } else {
                    sdp.push('a=rtcp-fb:' + payload.id + ' ' + fb.type + (fb.subtype ? ' ' + fb.subtype : ''));
                }
            });
        }
    });

    if (desc.feedback) {
        desc.feedback.forEach(function (fb) {
            if (fb.type === 'trr-int') {
                sdp.push('a=rtcp-fb:* trr-int ' + (fb.value ? fb.value : '0'));
            } else {
                sdp.push('a=rtcp-fb:* ' + fb.type + (fb.subtype ? ' ' + fb.subtype : ''));
            }
        });
    }

    var hdrExts = desc.headerExtensions || [];
    hdrExts.forEach(function (hdr) {
        sdp.push('a=extmap:' + hdr.id + (hdr.senders ? '/' + SENDERS[role][direction][hdr.senders] : '') + ' ' + hdr.uri);
    });

    var ssrcGroups = desc.sourceGroups || [];
    ssrcGroups.forEach(function (ssrcGroup) {
        sdp.push('a=ssrc-group:' + ssrcGroup.semantics + ' ' + ssrcGroup.sources.join(' '));
    });

    var ssrcs = desc.sources || [];
    ssrcs.forEach(function (ssrc) {
        for (var i = 0; i < ssrc.parameters.length; i++) {
            var param = ssrc.parameters[i];
            sdp.push('a=ssrc:' + (ssrc.ssrc || desc.ssrc) + ' ' + param.key + (param.value ? (':' + param.value) : ''));
        }
    });

    var candidates = transport.candidates || [];
    candidates.forEach(function (candidate) {
        sdp.push(exports.toCandidateSDP(candidate));
    });

    return sdp.join('\r\n');
};

exports.toCandidateSDP = function (candidate) {
    var sdp = [];

    sdp.push(candidate.foundation);
    sdp.push(candidate.component);
    sdp.push(candidate.protocol.toUpperCase());
    sdp.push(candidate.priority);
    sdp.push(candidate.ip);
    sdp.push(candidate.port);

    var type = candidate.type;
    sdp.push('typ');
    sdp.push(type);
    if (type === 'srflx' || type === 'prflx' || type === 'relay') {
        if (candidate.relAddr && candidate.relPort) {
            sdp.push('raddr');
            sdp.push(candidate.relAddr);
            sdp.push('rport');
            sdp.push(candidate.relPort);
        }
    }
    if (candidate.tcpType && candidate.protocol.toUpperCase() == 'TCP') {
        sdp.push('tcptype');
        sdp.push(candidate.tcpType);
    }

    sdp.push('generation');
    sdp.push(candidate.generation || '0');

    // FIXME: apparently this is wrong per spec
    // but then, we need this when actually putting this into
    // SDP so it's going to stay.
    // decision needs to be revisited when browsers dont
    // accept this any longer
    return 'a=candidate:' + sdp.join(' ');
};

},{"./senders":37}],28:[function(require,module,exports){
var SENDERS = require('./senders');
var parsers = require('./parsers');
var idCounter = Math.random();


exports._setIdCounter = function (counter) {
    idCounter = counter;
};

exports.toSessionJSON = function (sdp, opts) {
    var i;
    var creators = opts.creators || [];
    var role = opts.role || 'initiator';
    var direction = opts.direction || 'outgoing';


    // Divide the SDP into session and media sections.
    var media = sdp.split('\r\nm=');
    for (i = 1; i < media.length; i++) {
        media[i] = 'm=' + media[i];
        if (i !== media.length - 1) {
            media[i] += '\r\n';
        }
    }
    var session = media.shift() + '\r\n';
    var sessionLines = parsers.lines(session);
    var parsed = {};

    var contents = [];
    for (i = 0; i < media.length; i++) {
        contents.push(exports.toMediaJSON(media[i], session, {
            role: role,
            direction: direction,
            creator: creators[i] || 'initiator'
        }));
    }
    parsed.contents = contents;

    var groupLines = parsers.findLines('a=group:', sessionLines);
    if (groupLines.length) {
        parsed.groups = parsers.groups(groupLines);
    }

    return parsed;
};

exports.toMediaJSON = function (media, session, opts) {
    var creator = opts.creator || 'initiator';
    var role = opts.role || 'initiator';
    var direction = opts.direction || 'outgoing';

    var lines = parsers.lines(media);
    var sessionLines = parsers.lines(session);
    var mline = parsers.mline(lines[0]);

    var content = {
        creator: creator,
        name: mline.media,
        description: {
            descType: 'rtp',
            media: mline.media,
            payloads: [],
            encryption: [],
            feedback: [],
            headerExtensions: []
        },
        transport: {
            transType: 'iceUdp',
            candidates: [],
            fingerprints: []
        }
    };
    if (mline.media == 'application') {
        // FIXME: the description is most likely to be independent
        // of the SDP and should be processed by other parts of the library
        content.description = {
            descType: 'datachannel'
        };
        content.transport.sctp = [];
    }
    var desc = content.description;
    var trans = content.transport;

    // If we have a mid, use that for the content name instead.
    var mid = parsers.findLine('a=mid:', lines);
    if (mid) {
        content.name = mid.substr(6);
    }

    if (parsers.findLine('a=sendrecv', lines, sessionLines)) {
        content.senders = 'both';
    } else if (parsers.findLine('a=sendonly', lines, sessionLines)) {
        content.senders = SENDERS[role][direction].sendonly;
    } else if (parsers.findLine('a=recvonly', lines, sessionLines)) {
        content.senders = SENDERS[role][direction].recvonly;
    } else if (parsers.findLine('a=inactive', lines, sessionLines)) {
        content.senders = 'none';
    }

    if (desc.descType == 'rtp') {
        var bandwidth = parsers.findLine('b=', lines);
        if (bandwidth) {
            desc.bandwidth = parsers.bandwidth(bandwidth);
        }

        var ssrc = parsers.findLine('a=ssrc:', lines);
        if (ssrc) {
            desc.ssrc = ssrc.substr(7).split(' ')[0];
        }

        var rtpmapLines = parsers.findLines('a=rtpmap:', lines);
        rtpmapLines.forEach(function (line) {
            var payload = parsers.rtpmap(line);
            payload.parameters = [];
            payload.feedback = [];

            var fmtpLines = parsers.findLines('a=fmtp:' + payload.id, lines);
            // There should only be one fmtp line per payload
            fmtpLines.forEach(function (line) {
                payload.parameters = parsers.fmtp(line);
            });

            var fbLines = parsers.findLines('a=rtcp-fb:' + payload.id, lines);
            fbLines.forEach(function (line) {
                payload.feedback.push(parsers.rtcpfb(line));
            });

            desc.payloads.push(payload);
        });

        var cryptoLines = parsers.findLines('a=crypto:', lines, sessionLines);
        cryptoLines.forEach(function (line) {
            desc.encryption.push(parsers.crypto(line));
        });

        if (parsers.findLine('a=rtcp-mux', lines)) {
            desc.mux = true;
        }

        var fbLines = parsers.findLines('a=rtcp-fb:*', lines);
        fbLines.forEach(function (line) {
            desc.feedback.push(parsers.rtcpfb(line));
        });

        var extLines = parsers.findLines('a=extmap:', lines);
        extLines.forEach(function (line) {
            var ext = parsers.extmap(line);

            ext.senders = SENDERS[role][direction][ext.senders];

            desc.headerExtensions.push(ext);
        });

        var ssrcGroupLines = parsers.findLines('a=ssrc-group:', lines);
        desc.sourceGroups = parsers.sourceGroups(ssrcGroupLines || []);

        var ssrcLines = parsers.findLines('a=ssrc:', lines);
        var sources = desc.sources = parsers.sources(ssrcLines || []);

        var msidLine = parsers.findLine('a=msid:', lines);
        if (msidLine) {
            var msid = parsers.msid(msidLine);
            ['msid', 'mslabel', 'label'].forEach(function (key) {
                for (var i = 0; i < sources.length; i++) {
                    var found = false;
                    for (var j = 0; j < sources[i].parameters.length; j++) {
                        if (sources[i].parameters[j].key === key) {
                            found = true;
                        }
                    }
                    if (!found) {
                        sources[i].parameters.push({ key: key, value: msid[key] });
                    }
                }
            });
        }

        if (parsers.findLine('a=x-google-flag:conference', lines, sessionLines)) {
            desc.googConferenceFlag = true;
        }
    }

    // transport specific attributes
    var fingerprintLines = parsers.findLines('a=fingerprint:', lines, sessionLines);
    var setup = parsers.findLine('a=setup:', lines, sessionLines);
    fingerprintLines.forEach(function (line) {
        var fp = parsers.fingerprint(line);
        if (setup) {
            fp.setup = setup.substr(8);
        }
        trans.fingerprints.push(fp);
    });

    var ufragLine = parsers.findLine('a=ice-ufrag:', lines, sessionLines);
    var pwdLine = parsers.findLine('a=ice-pwd:', lines, sessionLines);
    if (ufragLine && pwdLine) {
        trans.ufrag = ufragLine.substr(12);
        trans.pwd = pwdLine.substr(10);
        trans.candidates = [];

        var candidateLines = parsers.findLines('a=candidate:', lines, sessionLines);
        candidateLines.forEach(function (line) {
            trans.candidates.push(exports.toCandidateJSON(line));
        });
    }

    if (desc.descType == 'datachannel') {
        var sctpmapLines = parsers.findLines('a=sctpmap:', lines);
        sctpmapLines.forEach(function (line) {
            var sctp = parsers.sctpmap(line);
            trans.sctp.push(sctp);
        });
    }

    return content;
};

exports.toCandidateJSON = function (line) {
    var candidate = parsers.candidate(line.split('\r\n')[0]);
    candidate.id = (idCounter++).toString(36).substr(0, 12);
    return candidate;
};

},{"./parsers":38,"./senders":37}],29:[function(require,module,exports){
/**
 * lodash 3.0.0 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.7.0 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/**
 * A specialized version of `_.forEach` for arrays without support for callback
 * shorthands or `this` binding.
 *
 * @private
 * @param {Array} array The array to iterate over.
 * @param {Function} iteratee The function invoked per iteration.
 * @returns {Array} Returns `array`.
 */
function arrayEach(array, iteratee) {
  var index = -1,
      length = array.length;

  while (++index < length) {
    if (iteratee(array[index], index, array) === false) {
      break;
    }
  }
  return array;
}

module.exports = arrayEach;

},{}],31:[function(require,module,exports){
/**
 * lodash 3.0.1 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/**
 * A specialized version of `baseCallback` which only supports `this` binding
 * and specifying the number of arguments to provide to `func`.
 *
 * @private
 * @param {Function} func The function to bind.
 * @param {*} thisArg The `this` binding of `func`.
 * @param {number} [argCount] The number of arguments to provide to `func`.
 * @returns {Function} Returns the callback.
 */
function bindCallback(func, thisArg, argCount) {
  if (typeof func != 'function') {
    return identity;
  }
  if (thisArg === undefined) {
    return func;
  }
  switch (argCount) {
    case 1: return function(value) {
      return func.call(thisArg, value);
    };
    case 3: return function(value, index, collection) {
      return func.call(thisArg, value, index, collection);
    };
    case 4: return function(accumulator, value, index, collection) {
      return func.call(thisArg, accumulator, value, index, collection);
    };
    case 5: return function(value, other, key, object, source) {
      return func.call(thisArg, value, other, key, object, source);
    };
  }
  return function() {
    return func.apply(thisArg, arguments);
  };
}

/**
 * This method returns the first argument provided to it.
 *
 * @static
 * @memberOf _
 * @category Utility
 * @param {*} value Any value.
 * @returns {*} Returns `value`.
 * @example
 *
 * var object = { 'user': 'fred' };
 *
 * _.identity(object) === object;
 * // => true
 */
function identity(value) {
  return value;
}

module.exports = bindCallback;

},{}],32:[function(require,module,exports){
/**
 * lodash 3.0.4 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/** `Object#toString` result references. */
var arrayTag = '[object Array]',
    funcTag = '[object Function]';

/** Used to detect host constructors (Safari > 5). */
var reIsHostCtor = /^\[object .+?Constructor\]$/;

/**
 * Checks if `value` is object-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
 */
function isObjectLike(value) {
  return !!value && typeof value == 'object';
}

/** Used for native method references. */
var objectProto = Object.prototype;

/** Used to resolve the decompiled source of functions. */
var fnToString = Function.prototype.toString;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/**
 * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
 * of values.
 */
var objToString = objectProto.toString;

/** Used to detect if a method is native. */
var reIsNative = RegExp('^' +
  fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
);

/* Native method references for those with the same name as other `lodash` methods. */
var nativeIsArray = getNative(Array, 'isArray');

/**
 * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
 * of an array-like value.
 */
var MAX_SAFE_INTEGER = 9007199254740991;

/**
 * Gets the native function at `key` of `object`.
 *
 * @private
 * @param {Object} object The object to query.
 * @param {string} key The key of the method to get.
 * @returns {*} Returns the function if it's native, else `undefined`.
 */
function getNative(object, key) {
  var value = object == null ? undefined : object[key];
  return isNative(value) ? value : undefined;
}

/**
 * Checks if `value` is a valid array-like length.
 *
 * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
 */
function isLength(value) {
  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}

/**
 * Checks if `value` is classified as an `Array` object.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
 * @example
 *
 * _.isArray([1, 2, 3]);
 * // => true
 *
 * _.isArray(function() { return arguments; }());
 * // => false
 */
var isArray = nativeIsArray || function(value) {
  return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;
};

/**
 * Checks if `value` is classified as a `Function` object.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
 * @example
 *
 * _.isFunction(_);
 * // => true
 *
 * _.isFunction(/abc/);
 * // => false
 */
function isFunction(value) {
  // The use of `Object#toString` avoids issues with the `typeof` operator
  // in older versions of Chrome and Safari which return 'function' for regexes
  // and Safari 8 equivalents which return 'object' for typed array constructors.
  return isObject(value) && objToString.call(value) == funcTag;
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

/**
 * Checks if `value` is a native function.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
 * @example
 *
 * _.isNative(Array.prototype.push);
 * // => true
 *
 * _.isNative(_);
 * // => false
 */
function isNative(value) {
  if (value == null) {
    return false;
  }
  if (isFunction(value)) {
    return reIsNative.test(fnToString.call(value));
  }
  return isObjectLike(value) && reIsHostCtor.test(value);
}

module.exports = isArray;

},{}],33:[function(require,module,exports){
/**
 * lodash 3.7.2 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/**
 * The base implementation of `get` without support for string paths
 * and default values.
 *
 * @private
 * @param {Object} object The object to query.
 * @param {Array} path The path of the property to get.
 * @param {string} [pathKey] The key representation of path.
 * @returns {*} Returns the resolved value.
 */
function baseGet(object, path, pathKey) {
  if (object == null) {
    return;
  }
  if (pathKey !== undefined && pathKey in toObject(object)) {
    path = [pathKey];
  }
  var index = 0,
      length = path.length;

  while (object != null && index < length) {
    object = object[path[index++]];
  }
  return (index && index == length) ? object : undefined;
}

/**
 * Converts `value` to an object if it's not one.
 *
 * @private
 * @param {*} value The value to process.
 * @returns {Object} Returns the object.
 */
function toObject(value) {
  return isObject(value) ? value : Object(value);
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

module.exports = baseGet;

},{}],35:[function(require,module,exports){
/**
 * lodash 3.0.4 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/** `Object#toString` result references. */
var arrayTag = '[object Array]',
    funcTag = '[object Function]';

/** Used to detect host constructors (Safari > 5). */
var reIsHostCtor = /^\[object .+?Constructor\]$/;

/**
 * Checks if `value` is object-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
 */
function isObjectLike(value) {
  return !!value && typeof value == 'object';
}

/** Used for native method references. */
var objectProto = Object.prototype;

/** Used to resolve the decompiled source of functions. */
var fnToString = Function.prototype.toString;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/**
 * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
 * of values.
 */
var objToString = objectProto.toString;

/** Used to detect if a method is native. */
var reIsNative = RegExp('^' +
  fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
);

/* Native method references for those with the same name as other `lodash` methods. */
var nativeIsArray = getNative(Array, 'isArray');

/**
 * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
 * of an array-like value.
 */
var MAX_SAFE_INTEGER = 9007199254740991;

/**
 * Gets the native function at `key` of `object`.
 *
 * @private
 * @param {Object} object The object to query.
 * @param {string} key The key of the method to get.
 * @returns {*} Returns the function if it's native, else `undefined`.
 */
function getNative(object, key) {
  var value = object == null ? undefined : object[key];
  return isNative(value) ? value : undefined;
}

/**
 * Checks if `value` is a valid array-like length.
 *
 * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
 */
function isLength(value) {
  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}

/**
 * Checks if `value` is classified as an `Array` object.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
 * @example
 *
 * _.isArray([1, 2, 3]);
 * // => true
 *
 * _.isArray(function() { return arguments; }());
 * // => false
 */
var isArray = nativeIsArray || function(value) {
  return isObjectLike(value) && isLength(value.length) && objToString.call(value) == arrayTag;
};

/**
 * Checks if `value` is classified as a `Function` object.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
 * @example
 *
 * _.isFunction(_);
 * // => true
 *
 * _.isFunction(/abc/);
 * // => false
 */
function isFunction(value) {
  // The use of `Object#toString` avoids issues with the `typeof` operator
  // in older versions of Chrome and Safari which return 'function' for regexes
  // and Safari 8 equivalents which return 'object' for typed array constructors.
  return isObject(value) && objToString.call(value) == funcTag;
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

/**
 * Checks if `value` is a native function.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
 * @example
 *
 * _.isNative(Array.prototype.push);
 * // => true
 *
 * _.isNative(_);
 * // => false
 */
function isNative(value) {
  if (value == null) {
    return false;
  }
  if (isFunction(value)) {
    return reIsNative.test(fnToString.call(value));
  }
  return isObjectLike(value) && reIsHostCtor.test(value);
}

module.exports = isArray;

},{}],38:[function(require,module,exports){
exports.lines = function (sdp) {
    return sdp.split('\r\n').filter(function (line) {
        return line.length > 0;
    });
};

exports.findLine = function (prefix, mediaLines, sessionLines) {
    var prefixLength = prefix.length;
    for (var i = 0; i < mediaLines.length; i++) {
        if (mediaLines[i].substr(0, prefixLength) === prefix) {
            return mediaLines[i];
        }
    }
    // Continue searching in parent session section
    if (!sessionLines) {
        return false;
    }

    for (var j = 0; j < sessionLines.length; j++) {
        if (sessionLines[j].substr(0, prefixLength) === prefix) {
            return sessionLines[j];
        }
    }

    return false;
};

exports.findLines = function (prefix, mediaLines, sessionLines) {
    var results = [];
    var prefixLength = prefix.length;
    for (var i = 0; i < mediaLines.length; i++) {
        if (mediaLines[i].substr(0, prefixLength) === prefix) {
            results.push(mediaLines[i]);
        }
    }
    if (results.length || !sessionLines) {
        return results;
    }
    for (var j = 0; j < sessionLines.length; j++) {
        if (sessionLines[j].substr(0, prefixLength) === prefix) {
            results.push(sessionLines[j]);
        }
    }
    return results;
};

exports.mline = function (line) {
    var parts = line.substr(2).split(' ');
    var parsed = {
        media: parts[0],
        port: parts[1],
        proto: parts[2],
        formats: []
    };
    for (var i = 3; i < parts.length; i++) {
        if (parts[i]) {
            parsed.formats.push(parts[i]);
        }
    }
    return parsed;
};

exports.rtpmap = function (line) {
    var parts = line.substr(9).split(' ');
    var parsed = {
        id: parts.shift()
    };

    parts = parts[0].split('/');

    parsed.name = parts[0];
    parsed.clockrate = parts[1];
    parsed.channels = parts.length == 3 ? parts[2] : '1';
    return parsed;
};

exports.sctpmap = function (line) {
    // based on -05 draft
    var parts = line.substr(10).split(' ');
    var parsed = {
        number: parts.shift(),
        protocol: parts.shift(),
        streams: parts.shift()
    };
    return parsed;
};


exports.fmtp = function (line) {
    var kv, key, value;
    var parts = line.substr(line.indexOf(' ') + 1).split(';');
    var parsed = [];
    for (var i = 0; i < parts.length; i++) {
        kv = parts[i].split('=');
        key = kv[0].trim();
        value = kv[1];
        if (key && value) {
            parsed.push({key: key, value: value});
        } else if (key) {
            parsed.push({key: '', value: key});
        }
    }
    return parsed;
};

exports.crypto = function (line) {
    var parts = line.substr(9).split(' ');
    var parsed = {
        tag: parts[0],
        cipherSuite: parts[1],
        keyParams: parts[2],
        sessionParams: parts.slice(3).join(' ')
    };
    return parsed;
};

exports.fingerprint = function (line) {
    var parts = line.substr(14).split(' ');
    return {
        hash: parts[0],
        value: parts[1]
    };
};

exports.extmap = function (line) {
    var parts = line.substr(9).split(' ');
    var parsed = {};

    var idpart = parts.shift();
    var sp = idpart.indexOf('/');
    if (sp >= 0) {
        parsed.id = idpart.substr(0, sp);
        parsed.senders = idpart.substr(sp + 1);
    } else {
        parsed.id = idpart;
        parsed.senders = 'sendrecv';
    }

    parsed.uri = parts.shift() || '';

    return parsed;
};

exports.rtcpfb = function (line) {
    var parts = line.substr(10).split(' ');
    var parsed = {};
    parsed.id = parts.shift();
    parsed.type = parts.shift();
    if (parsed.type === 'trr-int') {
        parsed.value = parts.shift();
    } else {
        parsed.subtype = parts.shift() || '';
    }
    parsed.parameters = parts;
    return parsed;
};

exports.candidate = function (line) {
    var parts;
    if (line.indexOf('a=candidate:') === 0) {
        parts = line.substring(12).split(' ');
    } else { // no a=candidate
        parts = line.substring(10).split(' ');
    }

    var candidate = {
        foundation: parts[0],
        component: parts[1],
        protocol: parts[2].toLowerCase(),
        priority: parts[3],
        ip: parts[4],
        port: parts[5],
        // skip parts[6] == 'typ'
        type: parts[7],
        generation: '0'
    };

    for (var i = 8; i < parts.length; i += 2) {
        if (parts[i] === 'raddr') {
            candidate.relAddr = parts[i + 1];
        } else if (parts[i] === 'rport') {
            candidate.relPort = parts[i + 1];
        } else if (parts[i] === 'generation') {
            candidate.generation = parts[i + 1];
        } else if (parts[i] === 'tcptype') {
            candidate.tcpType = parts[i + 1];
        }
    }

    candidate.network = '1';

    return candidate;
};

exports.sourceGroups = function (lines) {
    var parsed = [];
    for (var i = 0; i < lines.length; i++) {
        var parts = lines[i].substr(13).split(' ');
        parsed.push({
            semantics: parts.shift(),
            sources: parts
        });
    }
    return parsed;
};

exports.sources = function (lines) {
    // http://tools.ietf.org/html/rfc5576
    var parsed = [];
    var sources = {};
    for (var i = 0; i < lines.length; i++) {
        var parts = lines[i].substr(7).split(' ');
        var ssrc = parts.shift();

        if (!sources[ssrc]) {
            var source = {
                ssrc: ssrc,
                parameters: []
            };
            parsed.push(source);

            // Keep an index
            sources[ssrc] = source;
        }

        parts = parts.join(' ').split(':');
        var attribute = parts.shift();
        var value = parts.join(':') || null;

        sources[ssrc].parameters.push({
            key: attribute,
            value: value
        });
    }

    return parsed;
};

exports.groups = function (lines) {
    // http://tools.ietf.org/html/rfc5888
    var parsed = [];
    var parts;
    for (var i = 0; i < lines.length; i++) {
        parts = lines[i].substr(8).split(' ');
        parsed.push({
            semantics: parts.shift(),
            contents: parts
        });
    }
    return parsed;
};

exports.bandwidth = function (line) {
    var parts = line.substr(2).split(':');
    var parsed = {};
    parsed.type = parts.shift();
    parsed.bandwidth = parts.shift();
    return parsed;
};

exports.msid = function (line) {
    var data = line.substr(7);
    var parts = data.split(' ');
    return {
        msid: data,
        mslabel: parts[0],
        label: parts[1]
    };
};

},{}],37:[function(require,module,exports){
module.exports = {
    initiator: {
        incoming: {
            initiator: 'recvonly',
            responder: 'sendonly',
            both: 'sendrecv',
            none: 'inactive',
            recvonly: 'initiator',
            sendonly: 'responder',
            sendrecv: 'both',
            inactive: 'none'
        },
        outgoing: {
            initiator: 'sendonly',
            responder: 'recvonly',
            both: 'sendrecv',
            none: 'inactive',
            recvonly: 'responder',
            sendonly: 'initiator',
            sendrecv: 'both',
            inactive: 'none'
        }
    },
    responder: {
        incoming: {
            initiator: 'sendonly',
            responder: 'recvonly',
            both: 'sendrecv',
            none: 'inactive',
            recvonly: 'responder',
            sendonly: 'initiator',
            sendrecv: 'both',
            inactive: 'none'
        },
        outgoing: {
            initiator: 'recvonly',
            responder: 'sendonly',
            both: 'sendrecv',
            none: 'inactive',
            recvonly: 'initiator',
            sendonly: 'responder',
            sendrecv: 'both',
            inactive: 'none'
        }
    }
};

},{}],22:[function(require,module,exports){
// based on https://github.com/ESTOS/strophe.jingle/
// adds wildemitter support
var util = require('util');
var adapter = require('webrtc-adapter-test');
var WildEmitter = require('wildemitter');

function dumpSDP(description) {
    return {
        type: description.type,
        sdp: description.sdp
    };
}

function dumpStream(stream) {
    var info = {
        label: stream.id,
    };
    if (stream.getAudioTracks().length) {
        info.audio = stream.getAudioTracks().map(function (track) {
            return track.id;
        });
    }
    if (stream.getVideoTracks().length) {
        info.video = stream.getVideoTracks().map(function (track) {
            return track.id;
        });
    }
    return info;
}

function TraceablePeerConnection(config, constraints) {
    var self = this;
    WildEmitter.call(this);

    this.peerconnection = new window.RTCPeerConnection(config, constraints);

    this.trace = function (what, info) {
        self.emit('PeerConnectionTrace', {
            time: new Date(),
            type: what,
            value: info || ""
        });
    };

    this.onicecandidate = null;
    this.peerconnection.onicecandidate = function (event) {
        self.trace('onicecandidate', event.candidate);
        if (self.onicecandidate !== null) {
            self.onicecandidate(event);
        }
    };
    this.onaddstream = null;
    this.peerconnection.onaddstream = function (event) {
        self.trace('onaddstream', dumpStream(event.stream));
        if (self.onaddstream !== null) {
            self.onaddstream(event);
        }
    };
    this.onremovestream = null;
    this.peerconnection.onremovestream = function (event) {
        self.trace('onremovestream', dumpStream(event.stream));
        if (self.onremovestream !== null) {
            self.onremovestream(event);
        }
    };
    this.onsignalingstatechange = null;
    this.peerconnection.onsignalingstatechange = function (event) {
        self.trace('onsignalingstatechange', self.signalingState);
        if (self.onsignalingstatechange !== null) {
            self.onsignalingstatechange(event);
        }
    };
    this.oniceconnectionstatechange = null;
    this.peerconnection.oniceconnectionstatechange = function (event) {
        self.trace('oniceconnectionstatechange', self.iceConnectionState);
        if (self.oniceconnectionstatechange !== null) {
            self.oniceconnectionstatechange(event);
        }
    };
    this.onnegotiationneeded = null;
    this.peerconnection.onnegotiationneeded = function (event) {
        self.trace('onnegotiationneeded');
        if (self.onnegotiationneeded !== null) {
            self.onnegotiationneeded(event);
        }
    };
    self.ondatachannel = null;
    this.peerconnection.ondatachannel = function (event) {
        self.trace('ondatachannel', event);
        if (self.ondatachannel !== null) {
            self.ondatachannel(event);
        }
    };
    this.getLocalStreams = this.peerconnection.getLocalStreams.bind(this.peerconnection);
    this.getRemoteStreams = this.peerconnection.getRemoteStreams.bind(this.peerconnection);
}

util.inherits(TraceablePeerConnection, WildEmitter);

['signalingState', 'iceConnectionState', 'localDescription', 'remoteDescription'].forEach(function (prop) {
    Object.defineProperty(TraceablePeerConnection.prototype, prop, {
        get: function () {
            return this.peerconnection[prop];
        }
    });
});

TraceablePeerConnection.prototype.addStream = function (stream) {
    this.trace('addStream', dumpStream(stream));
    this.peerconnection.addStream(stream);
};

TraceablePeerConnection.prototype.removeStream = function (stream) {
    this.trace('removeStream', dumpStream(stream));
    this.peerconnection.removeStream(stream);
};

TraceablePeerConnection.prototype.createDataChannel = function (label, opts) {
    this.trace('createDataChannel', label, opts);
    return this.peerconnection.createDataChannel(label, opts);
};

TraceablePeerConnection.prototype.setLocalDescription = function (description, successCallback, failureCallback) {
    var self = this;
    this.trace('setLocalDescription', dumpSDP(description));
    this.peerconnection.setLocalDescription(description,
        function () {
            self.trace('setLocalDescriptionOnSuccess');
            if (successCallback) successCallback();
        },
        function (err) {
            self.trace('setLocalDescriptionOnFailure', err);
            if (failureCallback) failureCallback(err);
        }
    );
};

TraceablePeerConnection.prototype.setRemoteDescription = function (description, successCallback, failureCallback) {
    var self = this;
    this.trace('setRemoteDescription', dumpSDP(description));
    this.peerconnection.setRemoteDescription(description,
        function () {
            self.trace('setRemoteDescriptionOnSuccess');
            if (successCallback) successCallback();
        },
        function (err) {
            self.trace('setRemoteDescriptionOnFailure', err);
            if (failureCallback) failureCallback(err);
        }
    );
};

TraceablePeerConnection.prototype.close = function () {
    this.trace('stop');
    if (this.peerconnection.signalingState != 'closed') {
        this.peerconnection.close();
    }
};

TraceablePeerConnection.prototype.createOffer = function (successCallback, failureCallback, constraints) {
    var self = this;
    this.trace('createOffer', constraints);
    this.peerconnection.createOffer(
        function (offer) {
            self.trace('createOfferOnSuccess', dumpSDP(offer));
            if (successCallback) successCallback(offer);
        },
        function (err) {
            self.trace('createOfferOnFailure', err);
            if (failureCallback) failureCallback(err);
        },
        constraints
    );
};

TraceablePeerConnection.prototype.createAnswer = function (successCallback, failureCallback, constraints) {
    var self = this;
    this.trace('createAnswer', constraints);
    this.peerconnection.createAnswer(
        function (answer) {
            self.trace('createAnswerOnSuccess', dumpSDP(answer));
            if (successCallback) successCallback(answer);
        },
        function (err) {
            self.trace('createAnswerOnFailure', err);
            if (failureCallback) failureCallback(err);
        },
        constraints
    );
};

TraceablePeerConnection.prototype.addIceCandidate = function (candidate, successCallback, failureCallback) {
    var self = this;
    this.trace('addIceCandidate', candidate);
    this.peerconnection.addIceCandidate(candidate,
        function () {
            //self.trace('addIceCandidateOnSuccess');
            if (successCallback) successCallback();
        },
        function (err) {
            self.trace('addIceCandidateOnFailure', err);
            if (failureCallback) failureCallback(err);
        }
    );
};

TraceablePeerConnection.prototype.getStats = function () {
    this.peerconnection.getStats.apply(this.peerconnection, arguments);
};

module.exports = TraceablePeerConnection;

},{"util":8,"webrtc-adapter-test":20,"wildemitter":4}],30:[function(require,module,exports){
/**
 * lodash 3.0.4 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var keys = require('lodash.keys');

/**
 * Used as the [maximum length](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.max_safe_integer)
 * of an array-like value.
 */
var MAX_SAFE_INTEGER = 9007199254740991;

/**
 * The base implementation of `_.forEach` without support for callback
 * shorthands and `this` binding.
 *
 * @private
 * @param {Array|Object|string} collection The collection to iterate over.
 * @param {Function} iteratee The function invoked per iteration.
 * @returns {Array|Object|string} Returns `collection`.
 */
var baseEach = createBaseEach(baseForOwn);

/**
 * The base implementation of `baseForIn` and `baseForOwn` which iterates
 * over `object` properties returned by `keysFunc` invoking `iteratee` for
 * each property. Iteratee functions may exit iteration early by explicitly
 * returning `false`.
 *
 * @private
 * @param {Object} object The object to iterate over.
 * @param {Function} iteratee The function invoked per iteration.
 * @param {Function} keysFunc The function to get the keys of `object`.
 * @returns {Object} Returns `object`.
 */
var baseFor = createBaseFor();

/**
 * The base implementation of `_.forOwn` without support for callback
 * shorthands and `this` binding.
 *
 * @private
 * @param {Object} object The object to iterate over.
 * @param {Function} iteratee The function invoked per iteration.
 * @returns {Object} Returns `object`.
 */
function baseForOwn(object, iteratee) {
  return baseFor(object, iteratee, keys);
}

/**
 * The base implementation of `_.property` without support for deep paths.
 *
 * @private
 * @param {string} key The key of the property to get.
 * @returns {Function} Returns the new function.
 */
function baseProperty(key) {
  return function(object) {
    return object == null ? undefined : object[key];
  };
}

/**
 * Creates a `baseEach` or `baseEachRight` function.
 *
 * @private
 * @param {Function} eachFunc The function to iterate over a collection.
 * @param {boolean} [fromRight] Specify iterating from right to left.
 * @returns {Function} Returns the new base function.
 */
function createBaseEach(eachFunc, fromRight) {
  return function(collection, iteratee) {
    var length = collection ? getLength(collection) : 0;
    if (!isLength(length)) {
      return eachFunc(collection, iteratee);
    }
    var index = fromRight ? length : -1,
        iterable = toObject(collection);

    while ((fromRight ? index-- : ++index < length)) {
      if (iteratee(iterable[index], index, iterable) === false) {
        break;
      }
    }
    return collection;
  };
}

/**
 * Creates a base function for `_.forIn` or `_.forInRight`.
 *
 * @private
 * @param {boolean} [fromRight] Specify iterating from right to left.
 * @returns {Function} Returns the new base function.
 */
function createBaseFor(fromRight) {
  return function(object, iteratee, keysFunc) {
    var iterable = toObject(object),
        props = keysFunc(object),
        length = props.length,
        index = fromRight ? length : -1;

    while ((fromRight ? index-- : ++index < length)) {
      var key = props[index];
      if (iteratee(iterable[key], key, iterable) === false) {
        break;
      }
    }
    return object;
  };
}

/**
 * Gets the "length" property value of `object`.
 *
 * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
 * that affects Safari on at least iOS 8.1-8.3 ARM64.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {*} Returns the "length" value.
 */
var getLength = baseProperty('length');

/**
 * Checks if `value` is a valid array-like length.
 *
 * **Note:** This function is based on [`ToLength`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength).
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
 */
function isLength(value) {
  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}

/**
 * Converts `value` to an object if it's not one.
 *
 * @private
 * @param {*} value The value to process.
 * @returns {Object} Returns the object.
 */
function toObject(value) {
  return isObject(value) ? value : Object(value);
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

module.exports = baseEach;

},{"lodash.keys":39}],40:[function(require,module,exports){
/**
 * lodash 3.0.0 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.7.0 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/**
 * A specialized version of `_.map` for arrays without support for callback
 * shorthands or `this` binding.
 *
 * @private
 * @param {Array} array The array to iterate over.
 * @param {Function} iteratee The function invoked per iteration.
 * @returns {Array} Returns the new mapped array.
 */
function arrayMap(array, iteratee) {
  var index = -1,
      length = array.length,
      result = Array(length);

  while (++index < length) {
    result[index] = iteratee(array[index], index, array);
  }
  return result;
}

module.exports = arrayMap;

},{}],34:[function(require,module,exports){
/**
 * lodash 3.8.1 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var isArray = require('lodash.isarray');

/** Used to match property names within property paths. */
var rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\n\\]|\\.)*?)\2)\]/g;

/** Used to match backslashes in property paths. */
var reEscapeChar = /\\(\\)?/g;

/**
 * Converts `value` to a string if it's not one. An empty string is returned
 * for `null` or `undefined` values.
 *
 * @private
 * @param {*} value The value to process.
 * @returns {string} Returns the string.
 */
function baseToString(value) {
  return value == null ? '' : (value + '');
}

/**
 * Converts `value` to property path array if it's not one.
 *
 * @private
 * @param {*} value The value to process.
 * @returns {Array} Returns the property path array.
 */
function toPath(value) {
  if (isArray(value)) {
    return value;
  }
  var result = [];
  baseToString(value).replace(rePropName, function(match, number, quote, string) {
    result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));
  });
  return result;
}

module.exports = toPath;

},{"lodash.isarray":35}],36:[function(require,module,exports){
/**
 * lodash 3.1.4 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var arrayMap = require('lodash._arraymap'),
    baseCallback = require('lodash._basecallback'),
    baseEach = require('lodash._baseeach'),
    isArray = require('lodash.isarray');

/**
 * Used as the [maximum length](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.max_safe_integer)
 * of an array-like value.
 */
var MAX_SAFE_INTEGER = 9007199254740991;

/**
 * The base implementation of `_.map` without support for callback shorthands
 * and `this` binding.
 *
 * @private
 * @param {Array|Object|string} collection The collection to iterate over.
 * @param {Function} iteratee The function invoked per iteration.
 * @returns {Array} Returns the new mapped array.
 */
function baseMap(collection, iteratee) {
  var index = -1,
      result = isArrayLike(collection) ? Array(collection.length) : [];

  baseEach(collection, function(value, key, collection) {
    result[++index] = iteratee(value, key, collection);
  });
  return result;
}

/**
 * The base implementation of `_.property` without support for deep paths.
 *
 * @private
 * @param {string} key The key of the property to get.
 * @returns {Function} Returns the new function.
 */
function baseProperty(key) {
  return function(object) {
    return object == null ? undefined : object[key];
  };
}

/**
 * Gets the "length" property value of `object`.
 *
 * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
 * that affects Safari on at least iOS 8.1-8.3 ARM64.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {*} Returns the "length" value.
 */
var getLength = baseProperty('length');

/**
 * Checks if `value` is array-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
 */
function isArrayLike(value) {
  return value != null && isLength(getLength(value));
}

/**
 * Checks if `value` is a valid array-like length.
 *
 * **Note:** This function is based on [`ToLength`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength).
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
 */
function isLength(value) {
  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}

/**
 * Creates an array of values by running each element in `collection` through
 * `iteratee`. The `iteratee` is bound to `thisArg` and invoked with three
 * arguments: (value, index|key, collection).
 *
 * If a property name is provided for `iteratee` the created `_.property`
 * style callback returns the property value of the given element.
 *
 * If a value is also provided for `thisArg` the created `_.matchesProperty`
 * style callback returns `true` for elements that have a matching property
 * value, else `false`.
 *
 * If an object is provided for `iteratee` the created `_.matches` style
 * callback returns `true` for elements that have the properties of the given
 * object, else `false`.
 *
 * Many lodash methods are guarded to work as iteratees for methods like
 * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
 *
 * The guarded methods are:
 * `ary`, `callback`, `chunk`, `clone`, `create`, `curry`, `curryRight`,
 * `drop`, `dropRight`, `every`, `fill`, `flatten`, `invert`, `max`, `min`,
 * `parseInt`, `slice`, `sortBy`, `take`, `takeRight`, `template`, `trim`,
 * `trimLeft`, `trimRight`, `trunc`, `random`, `range`, `sample`, `some`,
 * `sum`, `uniq`, and `words`
 *
 * @static
 * @memberOf _
 * @alias collect
 * @category Collection
 * @param {Array|Object|string} collection The collection to iterate over.
 * @param {Function|Object|string} [iteratee=_.identity] The function invoked
 *  per iteration.
 * @param {*} [thisArg] The `this` binding of `iteratee`.
 * @returns {Array} Returns the new mapped array.
 * @example
 *
 * function timesThree(n) {
 *   return n * 3;
 * }
 *
 * _.map([1, 2], timesThree);
 * // => [3, 6]
 *
 * _.map({ 'a': 1, 'b': 2 }, timesThree);
 * // => [3, 6] (iteration order is not guaranteed)
 *
 * var users = [
 *   { 'user': 'barney' },
 *   { 'user': 'fred' }
 * ];
 *
 * // using the `_.property` callback shorthand
 * _.map(users, 'user');
 * // => ['barney', 'fred']
 */
function map(collection, iteratee, thisArg) {
  var func = isArray(collection) ? arrayMap : baseMap;
  iteratee = baseCallback(iteratee, thisArg, 3);
  return func(collection, iteratee);
}

module.exports = map;

},{"lodash._arraymap":40,"lodash._basecallback":41,"lodash._baseeach":42,"lodash.isarray":35}],43:[function(require,module,exports){
/**
 * lodash 3.9.1 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/** `Object#toString` result references. */
var funcTag = '[object Function]';

/** Used to detect host constructors (Safari > 5). */
var reIsHostCtor = /^\[object .+?Constructor\]$/;

/**
 * Checks if `value` is object-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
 */
function isObjectLike(value) {
  return !!value && typeof value == 'object';
}

/** Used for native method references. */
var objectProto = Object.prototype;

/** Used to resolve the decompiled source of functions. */
var fnToString = Function.prototype.toString;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/**
 * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
 * of values.
 */
var objToString = objectProto.toString;

/** Used to detect if a method is native. */
var reIsNative = RegExp('^' +
  fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
);

/**
 * Gets the native function at `key` of `object`.
 *
 * @private
 * @param {Object} object The object to query.
 * @param {string} key The key of the method to get.
 * @returns {*} Returns the function if it's native, else `undefined`.
 */
function getNative(object, key) {
  var value = object == null ? undefined : object[key];
  return isNative(value) ? value : undefined;
}

/**
 * Checks if `value` is classified as a `Function` object.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
 * @example
 *
 * _.isFunction(_);
 * // => true
 *
 * _.isFunction(/abc/);
 * // => false
 */
function isFunction(value) {
  // The use of `Object#toString` avoids issues with the `typeof` operator
  // in older versions of Chrome and Safari which return 'function' for regexes
  // and Safari 8 equivalents which return 'object' for typed array constructors.
  return isObject(value) && objToString.call(value) == funcTag;
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

/**
 * Checks if `value` is a native function.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
 * @example
 *
 * _.isNative(Array.prototype.push);
 * // => true
 *
 * _.isNative(_);
 * // => false
 */
function isNative(value) {
  if (value == null) {
    return false;
  }
  if (isFunction(value)) {
    return reIsNative.test(fnToString.call(value));
  }
  return isObjectLike(value) && reIsHostCtor.test(value);
}

module.exports = getNative;

},{}],44:[function(require,module,exports){
/**
 * lodash 3.0.4 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/**
 * Checks if `value` is object-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
 */
function isObjectLike(value) {
  return !!value && typeof value == 'object';
}

/** Used for native method references. */
var objectProto = Object.prototype;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/** Native method references. */
var propertyIsEnumerable = objectProto.propertyIsEnumerable;

/**
 * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
 * of an array-like value.
 */
var MAX_SAFE_INTEGER = 9007199254740991;

/**
 * The base implementation of `_.property` without support for deep paths.
 *
 * @private
 * @param {string} key The key of the property to get.
 * @returns {Function} Returns the new function.
 */
function baseProperty(key) {
  return function(object) {
    return object == null ? undefined : object[key];
  };
}

/**
 * Gets the "length" property value of `object`.
 *
 * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
 * that affects Safari on at least iOS 8.1-8.3 ARM64.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {*} Returns the "length" value.
 */
var getLength = baseProperty('length');

/**
 * Checks if `value` is array-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
 */
function isArrayLike(value) {
  return value != null && isLength(getLength(value));
}

/**
 * Checks if `value` is a valid array-like length.
 *
 * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
 */
function isLength(value) {
  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}

/**
 * Checks if `value` is classified as an `arguments` object.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
 * @example
 *
 * _.isArguments(function() { return arguments; }());
 * // => true
 *
 * _.isArguments([1, 2, 3]);
 * // => false
 */
function isArguments(value) {
  return isObjectLike(value) && isArrayLike(value) &&
    hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');
}

module.exports = isArguments;

},{}],45:[function(require,module,exports){
/**
 * lodash 3.0.1 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/**
 * A specialized version of `baseCallback` which only supports `this` binding
 * and specifying the number of arguments to provide to `func`.
 *
 * @private
 * @param {Function} func The function to bind.
 * @param {*} thisArg The `this` binding of `func`.
 * @param {number} [argCount] The number of arguments to provide to `func`.
 * @returns {Function} Returns the callback.
 */
function bindCallback(func, thisArg, argCount) {
  if (typeof func != 'function') {
    return identity;
  }
  if (thisArg === undefined) {
    return func;
  }
  switch (argCount) {
    case 1: return function(value) {
      return func.call(thisArg, value);
    };
    case 3: return function(value, index, collection) {
      return func.call(thisArg, value, index, collection);
    };
    case 4: return function(accumulator, value, index, collection) {
      return func.call(thisArg, accumulator, value, index, collection);
    };
    case 5: return function(value, other, key, object, source) {
      return func.call(thisArg, value, other, key, object, source);
    };
  }
  return function() {
    return func.apply(thisArg, arguments);
  };
}

/**
 * This method returns the first argument provided to it.
 *
 * @static
 * @memberOf _
 * @category Utility
 * @param {*} value Any value.
 * @returns {*} Returns `value`.
 * @example
 *
 * var object = { 'user': 'fred' };
 *
 * _.identity(object) === object;
 * // => true
 */
function identity(value) {
  return value;
}

module.exports = bindCallback;

},{}],42:[function(require,module,exports){
/**
 * lodash 3.0.4 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var keys = require('lodash.keys');

/**
 * Used as the [maximum length](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.max_safe_integer)
 * of an array-like value.
 */
var MAX_SAFE_INTEGER = 9007199254740991;

/**
 * The base implementation of `_.forEach` without support for callback
 * shorthands and `this` binding.
 *
 * @private
 * @param {Array|Object|string} collection The collection to iterate over.
 * @param {Function} iteratee The function invoked per iteration.
 * @returns {Array|Object|string} Returns `collection`.
 */
var baseEach = createBaseEach(baseForOwn);

/**
 * The base implementation of `baseForIn` and `baseForOwn` which iterates
 * over `object` properties returned by `keysFunc` invoking `iteratee` for
 * each property. Iteratee functions may exit iteration early by explicitly
 * returning `false`.
 *
 * @private
 * @param {Object} object The object to iterate over.
 * @param {Function} iteratee The function invoked per iteration.
 * @param {Function} keysFunc The function to get the keys of `object`.
 * @returns {Object} Returns `object`.
 */
var baseFor = createBaseFor();

/**
 * The base implementation of `_.forOwn` without support for callback
 * shorthands and `this` binding.
 *
 * @private
 * @param {Object} object The object to iterate over.
 * @param {Function} iteratee The function invoked per iteration.
 * @returns {Object} Returns `object`.
 */
function baseForOwn(object, iteratee) {
  return baseFor(object, iteratee, keys);
}

/**
 * The base implementation of `_.property` without support for deep paths.
 *
 * @private
 * @param {string} key The key of the property to get.
 * @returns {Function} Returns the new function.
 */
function baseProperty(key) {
  return function(object) {
    return object == null ? undefined : object[key];
  };
}

/**
 * Creates a `baseEach` or `baseEachRight` function.
 *
 * @private
 * @param {Function} eachFunc The function to iterate over a collection.
 * @param {boolean} [fromRight] Specify iterating from right to left.
 * @returns {Function} Returns the new base function.
 */
function createBaseEach(eachFunc, fromRight) {
  return function(collection, iteratee) {
    var length = collection ? getLength(collection) : 0;
    if (!isLength(length)) {
      return eachFunc(collection, iteratee);
    }
    var index = fromRight ? length : -1,
        iterable = toObject(collection);

    while ((fromRight ? index-- : ++index < length)) {
      if (iteratee(iterable[index], index, iterable) === false) {
        break;
      }
    }
    return collection;
  };
}

/**
 * Creates a base function for `_.forIn` or `_.forInRight`.
 *
 * @private
 * @param {boolean} [fromRight] Specify iterating from right to left.
 * @returns {Function} Returns the new base function.
 */
function createBaseFor(fromRight) {
  return function(object, iteratee, keysFunc) {
    var iterable = toObject(object),
        props = keysFunc(object),
        length = props.length,
        index = fromRight ? length : -1;

    while ((fromRight ? index-- : ++index < length)) {
      var key = props[index];
      if (iteratee(iterable[key], key, iterable) === false) {
        break;
      }
    }
    return object;
  };
}

/**
 * Gets the "length" property value of `object`.
 *
 * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
 * that affects Safari on at least iOS 8.1-8.3 ARM64.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {*} Returns the "length" value.
 */
var getLength = baseProperty('length');

/**
 * Checks if `value` is a valid array-like length.
 *
 * **Note:** This function is based on [`ToLength`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength).
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
 */
function isLength(value) {
  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}

/**
 * Converts `value` to an object if it's not one.
 *
 * @private
 * @param {*} value The value to process.
 * @returns {Object} Returns the object.
 */
function toObject(value) {
  return isObject(value) ? value : Object(value);
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

module.exports = baseEach;

},{"lodash.keys":46}],39:[function(require,module,exports){
/**
 * lodash 3.1.2 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var getNative = require('lodash._getnative'),
    isArguments = require('lodash.isarguments'),
    isArray = require('lodash.isarray');

/** Used to detect unsigned integer values. */
var reIsUint = /^\d+$/;

/** Used for native method references. */
var objectProto = Object.prototype;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/* Native method references for those with the same name as other `lodash` methods. */
var nativeKeys = getNative(Object, 'keys');

/**
 * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
 * of an array-like value.
 */
var MAX_SAFE_INTEGER = 9007199254740991;

/**
 * The base implementation of `_.property` without support for deep paths.
 *
 * @private
 * @param {string} key The key of the property to get.
 * @returns {Function} Returns the new function.
 */
function baseProperty(key) {
  return function(object) {
    return object == null ? undefined : object[key];
  };
}

/**
 * Gets the "length" property value of `object`.
 *
 * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
 * that affects Safari on at least iOS 8.1-8.3 ARM64.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {*} Returns the "length" value.
 */
var getLength = baseProperty('length');

/**
 * Checks if `value` is array-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
 */
function isArrayLike(value) {
  return value != null && isLength(getLength(value));
}

/**
 * Checks if `value` is a valid array-like index.
 *
 * @private
 * @param {*} value The value to check.
 * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
 * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
 */
function isIndex(value, length) {
  value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
  length = length == null ? MAX_SAFE_INTEGER : length;
  return value > -1 && value % 1 == 0 && value < length;
}

/**
 * Checks if `value` is a valid array-like length.
 *
 * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
 */
function isLength(value) {
  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}

/**
 * A fallback implementation of `Object.keys` which creates an array of the
 * own enumerable property names of `object`.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of property names.
 */
function shimKeys(object) {
  var props = keysIn(object),
      propsLength = props.length,
      length = propsLength && object.length;

  var allowIndexes = !!length && isLength(length) &&
    (isArray(object) || isArguments(object));

  var index = -1,
      result = [];

  while (++index < propsLength) {
    var key = props[index];
    if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {
      result.push(key);
    }
  }
  return result;
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

/**
 * Creates an array of the own enumerable property names of `object`.
 *
 * **Note:** Non-object values are coerced to objects. See the
 * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
 * for more details.
 *
 * @static
 * @memberOf _
 * @category Object
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of property names.
 * @example
 *
 * function Foo() {
 *   this.a = 1;
 *   this.b = 2;
 * }
 *
 * Foo.prototype.c = 3;
 *
 * _.keys(new Foo);
 * // => ['a', 'b'] (iteration order is not guaranteed)
 *
 * _.keys('hi');
 * // => ['0', '1']
 */
var keys = !nativeKeys ? shimKeys : function(object) {
  var Ctor = object == null ? undefined : object.constructor;
  if ((typeof Ctor == 'function' && Ctor.prototype === object) ||
      (typeof object != 'function' && isArrayLike(object))) {
    return shimKeys(object);
  }
  return isObject(object) ? nativeKeys(object) : [];
};

/**
 * Creates an array of the own and inherited enumerable property names of `object`.
 *
 * **Note:** Non-object values are coerced to objects.
 *
 * @static
 * @memberOf _
 * @category Object
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of property names.
 * @example
 *
 * function Foo() {
 *   this.a = 1;
 *   this.b = 2;
 * }
 *
 * Foo.prototype.c = 3;
 *
 * _.keysIn(new Foo);
 * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
 */
function keysIn(object) {
  if (object == null) {
    return [];
  }
  if (!isObject(object)) {
    object = Object(object);
  }
  var length = object.length;
  length = (length && isLength(length) &&
    (isArray(object) || isArguments(object)) && length) || 0;

  var Ctor = object.constructor,
      index = -1,
      isProto = typeof Ctor == 'function' && Ctor.prototype === object,
      result = Array(length),
      skipIndexes = length > 0;

  while (++index < length) {
    result[index] = (index + '');
  }
  for (var key in object) {
    if (!(skipIndexes && isIndex(key, length)) &&
        !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
      result.push(key);
    }
  }
  return result;
}

module.exports = keys;

},{"lodash._getnative":43,"lodash.isarguments":44,"lodash.isarray":32}],41:[function(require,module,exports){
/**
 * lodash 3.3.1 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var baseIsEqual = require('lodash._baseisequal'),
    bindCallback = require('lodash._bindcallback'),
    isArray = require('lodash.isarray'),
    pairs = require('lodash.pairs');

/** Used to match property names within property paths. */
var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\n\\]|\\.)*?\1)\]/,
    reIsPlainProp = /^\w*$/,
    rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\n\\]|\\.)*?)\2)\]/g;

/** Used to match backslashes in property paths. */
var reEscapeChar = /\\(\\)?/g;

/**
 * Converts `value` to a string if it's not one. An empty string is returned
 * for `null` or `undefined` values.
 *
 * @private
 * @param {*} value The value to process.
 * @returns {string} Returns the string.
 */
function baseToString(value) {
  return value == null ? '' : (value + '');
}

/**
 * The base implementation of `_.callback` which supports specifying the
 * number of arguments to provide to `func`.
 *
 * @private
 * @param {*} [func=_.identity] The value to convert to a callback.
 * @param {*} [thisArg] The `this` binding of `func`.
 * @param {number} [argCount] The number of arguments to provide to `func`.
 * @returns {Function} Returns the callback.
 */
function baseCallback(func, thisArg, argCount) {
  var type = typeof func;
  if (type == 'function') {
    return thisArg === undefined
      ? func
      : bindCallback(func, thisArg, argCount);
  }
  if (func == null) {
    return identity;
  }
  if (type == 'object') {
    return baseMatches(func);
  }
  return thisArg === undefined
    ? property(func)
    : baseMatchesProperty(func, thisArg);
}

/**
 * The base implementation of `get` without support for string paths
 * and default values.
 *
 * @private
 * @param {Object} object The object to query.
 * @param {Array} path The path of the property to get.
 * @param {string} [pathKey] The key representation of path.
 * @returns {*} Returns the resolved value.
 */
function baseGet(object, path, pathKey) {
  if (object == null) {
    return;
  }
  if (pathKey !== undefined && pathKey in toObject(object)) {
    path = [pathKey];
  }
  var index = 0,
      length = path.length;

  while (object != null && index < length) {
    object = object[path[index++]];
  }
  return (index && index == length) ? object : undefined;
}

/**
 * The base implementation of `_.isMatch` without support for callback
 * shorthands and `this` binding.
 *
 * @private
 * @param {Object} object The object to inspect.
 * @param {Array} matchData The propery names, values, and compare flags to match.
 * @param {Function} [customizer] The function to customize comparing objects.
 * @returns {boolean} Returns `true` if `object` is a match, else `false`.
 */
function baseIsMatch(object, matchData, customizer) {
  var index = matchData.length,
      length = index,
      noCustomizer = !customizer;

  if (object == null) {
    return !length;
  }
  object = toObject(object);
  while (index--) {
    var data = matchData[index];
    if ((noCustomizer && data[2])
          ? data[1] !== object[data[0]]
          : !(data[0] in object)
        ) {
      return false;
    }
  }
  while (++index < length) {
    data = matchData[index];
    var key = data[0],
        objValue = object[key],
        srcValue = data[1];

    if (noCustomizer && data[2]) {
      if (objValue === undefined && !(key in object)) {
        return false;
      }
    } else {
      var result = customizer ? customizer(objValue, srcValue, key) : undefined;
      if (!(result === undefined ? baseIsEqual(srcValue, objValue, customizer, true) : result)) {
        return false;
      }
    }
  }
  return true;
}

/**
 * The base implementation of `_.matches` which does not clone `source`.
 *
 * @private
 * @param {Object} source The object of property values to match.
 * @returns {Function} Returns the new function.
 */
function baseMatches(source) {
  var matchData = getMatchData(source);
  if (matchData.length == 1 && matchData[0][2]) {
    var key = matchData[0][0],
        value = matchData[0][1];

    return function(object) {
      if (object == null) {
        return false;
      }
      return object[key] === value && (value !== undefined || (key in toObject(object)));
    };
  }
  return function(object) {
    return baseIsMatch(object, matchData);
  };
}

/**
 * The base implementation of `_.matchesProperty` which does not clone `srcValue`.
 *
 * @private
 * @param {string} path The path of the property to get.
 * @param {*} srcValue The value to compare.
 * @returns {Function} Returns the new function.
 */
function baseMatchesProperty(path, srcValue) {
  var isArr = isArray(path),
      isCommon = isKey(path) && isStrictComparable(srcValue),
      pathKey = (path + '');

  path = toPath(path);
  return function(object) {
    if (object == null) {
      return false;
    }
    var key = pathKey;
    object = toObject(object);
    if ((isArr || !isCommon) && !(key in object)) {
      object = path.length == 1 ? object : baseGet(object, baseSlice(path, 0, -1));
      if (object == null) {
        return false;
      }
      key = last(path);
      object = toObject(object);
    }
    return object[key] === srcValue
      ? (srcValue !== undefined || (key in object))
      : baseIsEqual(srcValue, object[key], undefined, true);
  };
}

/**
 * The base implementation of `_.property` without support for deep paths.
 *
 * @private
 * @param {string} key The key of the property to get.
 * @returns {Function} Returns the new function.
 */
function baseProperty(key) {
  return function(object) {
    return object == null ? undefined : object[key];
  };
}

/**
 * A specialized version of `baseProperty` which supports deep paths.
 *
 * @private
 * @param {Array|string} path The path of the property to get.
 * @returns {Function} Returns the new function.
 */
function basePropertyDeep(path) {
  var pathKey = (path + '');
  path = toPath(path);
  return function(object) {
    return baseGet(object, path, pathKey);
  };
}

/**
 * The base implementation of `_.slice` without an iteratee call guard.
 *
 * @private
 * @param {Array} array The array to slice.
 * @param {number} [start=0] The start position.
 * @param {number} [end=array.length] The end position.
 * @returns {Array} Returns the slice of `array`.
 */
function baseSlice(array, start, end) {
  var index = -1,
      length = array.length;

  start = start == null ? 0 : (+start || 0);
  if (start < 0) {
    start = -start > length ? 0 : (length + start);
  }
  end = (end === undefined || end > length) ? length : (+end || 0);
  if (end < 0) {
    end += length;
  }
  length = start > end ? 0 : ((end - start) >>> 0);
  start >>>= 0;

  var result = Array(length);
  while (++index < length) {
    result[index] = array[index + start];
  }
  return result;
}

/**
 * Gets the propery names, values, and compare flags of `object`.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {Array} Returns the match data of `object`.
 */
function getMatchData(object) {
  var result = pairs(object),
      length = result.length;

  while (length--) {
    result[length][2] = isStrictComparable(result[length][1]);
  }
  return result;
}

/**
 * Checks if `value` is a property name and not a property path.
 *
 * @private
 * @param {*} value The value to check.
 * @param {Object} [object] The object to query keys on.
 * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
 */
function isKey(value, object) {
  var type = typeof value;
  if ((type == 'string' && reIsPlainProp.test(value)) || type == 'number') {
    return true;
  }
  if (isArray(value)) {
    return false;
  }
  var result = !reIsDeepProp.test(value);
  return result || (object != null && value in toObject(object));
}

/**
 * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` if suitable for strict
 *  equality comparisons, else `false`.
 */
function isStrictComparable(value) {
  return value === value && !isObject(value);
}

/**
 * Converts `value` to an object if it's not one.
 *
 * @private
 * @param {*} value The value to process.
 * @returns {Object} Returns the object.
 */
function toObject(value) {
  return isObject(value) ? value : Object(value);
}

/**
 * Converts `value` to property path array if it's not one.
 *
 * @private
 * @param {*} value The value to process.
 * @returns {Array} Returns the property path array.
 */
function toPath(value) {
  if (isArray(value)) {
    return value;
  }
  var result = [];
  baseToString(value).replace(rePropName, function(match, number, quote, string) {
    result.push(quote ? string.replace(reEscapeChar, '$1') : (number || match));
  });
  return result;
}

/**
 * Gets the last element of `array`.
 *
 * @static
 * @memberOf _
 * @category Array
 * @param {Array} array The array to query.
 * @returns {*} Returns the last element of `array`.
 * @example
 *
 * _.last([1, 2, 3]);
 * // => 3
 */
function last(array) {
  var length = array ? array.length : 0;
  return length ? array[length - 1] : undefined;
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

/**
 * This method returns the first argument provided to it.
 *
 * @static
 * @memberOf _
 * @category Utility
 * @param {*} value Any value.
 * @returns {*} Returns `value`.
 * @example
 *
 * var object = { 'user': 'fred' };
 *
 * _.identity(object) === object;
 * // => true
 */
function identity(value) {
  return value;
}

/**
 * Creates a function that returns the property value at `path` on a
 * given object.
 *
 * @static
 * @memberOf _
 * @category Utility
 * @param {Array|string} path The path of the property to get.
 * @returns {Function} Returns the new function.
 * @example
 *
 * var objects = [
 *   { 'a': { 'b': { 'c': 2 } } },
 *   { 'a': { 'b': { 'c': 1 } } }
 * ];
 *
 * _.map(objects, _.property('a.b.c'));
 * // => [2, 1]
 *
 * _.pluck(_.sortBy(objects, _.property(['a', 'b', 'c'])), 'a.b.c');
 * // => [1, 2]
 */
function property(path) {
  return isKey(path) ? baseProperty(path) : basePropertyDeep(path);
}

module.exports = baseCallback;

},{"lodash._baseisequal":47,"lodash._bindcallback":45,"lodash.isarray":35,"lodash.pairs":48}],49:[function(require,module,exports){
/**
 * lodash 3.0.2 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/** `Object#toString` result references. */
var argsTag = '[object Arguments]',
    arrayTag = '[object Array]',
    boolTag = '[object Boolean]',
    dateTag = '[object Date]',
    errorTag = '[object Error]',
    funcTag = '[object Function]',
    mapTag = '[object Map]',
    numberTag = '[object Number]',
    objectTag = '[object Object]',
    regexpTag = '[object RegExp]',
    setTag = '[object Set]',
    stringTag = '[object String]',
    weakMapTag = '[object WeakMap]';

var arrayBufferTag = '[object ArrayBuffer]',
    float32Tag = '[object Float32Array]',
    float64Tag = '[object Float64Array]',
    int8Tag = '[object Int8Array]',
    int16Tag = '[object Int16Array]',
    int32Tag = '[object Int32Array]',
    uint8Tag = '[object Uint8Array]',
    uint8ClampedTag = '[object Uint8ClampedArray]',
    uint16Tag = '[object Uint16Array]',
    uint32Tag = '[object Uint32Array]';

/** Used to identify `toStringTag` values of typed arrays. */
var typedArrayTags = {};
typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
typedArrayTags[uint32Tag] = true;
typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
typedArrayTags[dateTag] = typedArrayTags[errorTag] =
typedArrayTags[funcTag] = typedArrayTags[mapTag] =
typedArrayTags[numberTag] = typedArrayTags[objectTag] =
typedArrayTags[regexpTag] = typedArrayTags[setTag] =
typedArrayTags[stringTag] = typedArrayTags[weakMapTag] = false;

/**
 * Checks if `value` is object-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
 */
function isObjectLike(value) {
  return !!value && typeof value == 'object';
}

/** Used for native method references. */
var objectProto = Object.prototype;

/**
 * Used to resolve the [`toStringTag`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring)
 * of values.
 */
var objToString = objectProto.toString;

/**
 * Used as the [maximum length](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-number.max_safe_integer)
 * of an array-like value.
 */
var MAX_SAFE_INTEGER = 9007199254740991;

/**
 * Checks if `value` is a valid array-like length.
 *
 * **Note:** This function is based on [`ToLength`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-tolength).
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
 */
function isLength(value) {
  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}

/**
 * Checks if `value` is classified as a typed array.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
 * @example
 *
 * _.isTypedArray(new Uint8Array);
 * // => true
 *
 * _.isTypedArray([]);
 * // => false
 */
function isTypedArray(value) {
  return isObjectLike(value) && isLength(value.length) && !!typedArrayTags[objToString.call(value)];
}

module.exports = isTypedArray;

},{}],50:[function(require,module,exports){
/**
 * lodash 3.9.1 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/** `Object#toString` result references. */
var funcTag = '[object Function]';

/** Used to detect host constructors (Safari > 5). */
var reIsHostCtor = /^\[object .+?Constructor\]$/;

/**
 * Checks if `value` is object-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
 */
function isObjectLike(value) {
  return !!value && typeof value == 'object';
}

/** Used for native method references. */
var objectProto = Object.prototype;

/** Used to resolve the decompiled source of functions. */
var fnToString = Function.prototype.toString;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/**
 * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
 * of values.
 */
var objToString = objectProto.toString;

/** Used to detect if a method is native. */
var reIsNative = RegExp('^' +
  fnToString.call(hasOwnProperty).replace(/[\\^$.*+?()[\]{}|]/g, '\\$&')
  .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
);

/**
 * Gets the native function at `key` of `object`.
 *
 * @private
 * @param {Object} object The object to query.
 * @param {string} key The key of the method to get.
 * @returns {*} Returns the function if it's native, else `undefined`.
 */
function getNative(object, key) {
  var value = object == null ? undefined : object[key];
  return isNative(value) ? value : undefined;
}

/**
 * Checks if `value` is classified as a `Function` object.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
 * @example
 *
 * _.isFunction(_);
 * // => true
 *
 * _.isFunction(/abc/);
 * // => false
 */
function isFunction(value) {
  // The use of `Object#toString` avoids issues with the `typeof` operator
  // in older versions of Chrome and Safari which return 'function' for regexes
  // and Safari 8 equivalents which return 'object' for typed array constructors.
  return isObject(value) && objToString.call(value) == funcTag;
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

/**
 * Checks if `value` is a native function.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a native function, else `false`.
 * @example
 *
 * _.isNative(Array.prototype.push);
 * // => true
 *
 * _.isNative(_);
 * // => false
 */
function isNative(value) {
  if (value == null) {
    return false;
  }
  if (isFunction(value)) {
    return reIsNative.test(fnToString.call(value));
  }
  return isObjectLike(value) && reIsHostCtor.test(value);
}

module.exports = getNative;

},{}],51:[function(require,module,exports){
/**
 * lodash 3.0.4 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */

/**
 * Checks if `value` is object-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
 */
function isObjectLike(value) {
  return !!value && typeof value == 'object';
}

/** Used for native method references. */
var objectProto = Object.prototype;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/** Native method references. */
var propertyIsEnumerable = objectProto.propertyIsEnumerable;

/**
 * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
 * of an array-like value.
 */
var MAX_SAFE_INTEGER = 9007199254740991;

/**
 * The base implementation of `_.property` without support for deep paths.
 *
 * @private
 * @param {string} key The key of the property to get.
 * @returns {Function} Returns the new function.
 */
function baseProperty(key) {
  return function(object) {
    return object == null ? undefined : object[key];
  };
}

/**
 * Gets the "length" property value of `object`.
 *
 * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
 * that affects Safari on at least iOS 8.1-8.3 ARM64.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {*} Returns the "length" value.
 */
var getLength = baseProperty('length');

/**
 * Checks if `value` is array-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
 */
function isArrayLike(value) {
  return value != null && isLength(getLength(value));
}

/**
 * Checks if `value` is a valid array-like length.
 *
 * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
 */
function isLength(value) {
  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}

/**
 * Checks if `value` is classified as an `arguments` object.
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is correctly classified, else `false`.
 * @example
 *
 * _.isArguments(function() { return arguments; }());
 * // => true
 *
 * _.isArguments([1, 2, 3]);
 * // => false
 */
function isArguments(value) {
  return isObjectLike(value) && isArrayLike(value) &&
    hasOwnProperty.call(value, 'callee') && !propertyIsEnumerable.call(value, 'callee');
}

module.exports = isArguments;

},{}],48:[function(require,module,exports){
/**
 * lodash 3.0.1 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var keys = require('lodash.keys');

/**
 * Converts `value` to an object if it's not one.
 *
 * @private
 * @param {*} value The value to process.
 * @returns {Object} Returns the object.
 */
function toObject(value) {
  return isObject(value) ? value : Object(value);
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

/**
 * Creates a two dimensional array of the key-value pairs for `object`,
 * e.g. `[[key1, value1], [key2, value2]]`.
 *
 * @static
 * @memberOf _
 * @category Object
 * @param {Object} object The object to query.
 * @returns {Array} Returns the new array of key-value pairs.
 * @example
 *
 * _.pairs({ 'barney': 36, 'fred': 40 });
 * // => [['barney', 36], ['fred', 40]] (iteration order is not guaranteed)
 */
function pairs(object) {
  object = toObject(object);

  var index = -1,
      props = keys(object),
      length = props.length,
      result = Array(length);

  while (++index < length) {
    var key = props[index];
    result[index] = [key, object[key]];
  }
  return result;
}

module.exports = pairs;

},{"lodash.keys":46}],47:[function(require,module,exports){
/**
 * lodash 3.0.7 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var isArray = require('lodash.isarray'),
    isTypedArray = require('lodash.istypedarray'),
    keys = require('lodash.keys');

/** `Object#toString` result references. */
var argsTag = '[object Arguments]',
    arrayTag = '[object Array]',
    boolTag = '[object Boolean]',
    dateTag = '[object Date]',
    errorTag = '[object Error]',
    numberTag = '[object Number]',
    objectTag = '[object Object]',
    regexpTag = '[object RegExp]',
    stringTag = '[object String]';

/**
 * Checks if `value` is object-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
 */
function isObjectLike(value) {
  return !!value && typeof value == 'object';
}

/** Used for native method references. */
var objectProto = Object.prototype;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/**
 * Used to resolve the [`toStringTag`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.prototype.tostring)
 * of values.
 */
var objToString = objectProto.toString;

/**
 * A specialized version of `_.some` for arrays without support for callback
 * shorthands and `this` binding.
 *
 * @private
 * @param {Array} array The array to iterate over.
 * @param {Function} predicate The function invoked per iteration.
 * @returns {boolean} Returns `true` if any element passes the predicate check,
 *  else `false`.
 */
function arraySome(array, predicate) {
  var index = -1,
      length = array.length;

  while (++index < length) {
    if (predicate(array[index], index, array)) {
      return true;
    }
  }
  return false;
}

/**
 * The base implementation of `_.isEqual` without support for `this` binding
 * `customizer` functions.
 *
 * @private
 * @param {*} value The value to compare.
 * @param {*} other The other value to compare.
 * @param {Function} [customizer] The function to customize comparing values.
 * @param {boolean} [isLoose] Specify performing partial comparisons.
 * @param {Array} [stackA] Tracks traversed `value` objects.
 * @param {Array} [stackB] Tracks traversed `other` objects.
 * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
 */
function baseIsEqual(value, other, customizer, isLoose, stackA, stackB) {
  if (value === other) {
    return true;
  }
  if (value == null || other == null || (!isObject(value) && !isObjectLike(other))) {
    return value !== value && other !== other;
  }
  return baseIsEqualDeep(value, other, baseIsEqual, customizer, isLoose, stackA, stackB);
}

/**
 * A specialized version of `baseIsEqual` for arrays and objects which performs
 * deep comparisons and tracks traversed objects enabling objects with circular
 * references to be compared.
 *
 * @private
 * @param {Object} object The object to compare.
 * @param {Object} other The other object to compare.
 * @param {Function} equalFunc The function to determine equivalents of values.
 * @param {Function} [customizer] The function to customize comparing objects.
 * @param {boolean} [isLoose] Specify performing partial comparisons.
 * @param {Array} [stackA=[]] Tracks traversed `value` objects.
 * @param {Array} [stackB=[]] Tracks traversed `other` objects.
 * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
 */
function baseIsEqualDeep(object, other, equalFunc, customizer, isLoose, stackA, stackB) {
  var objIsArr = isArray(object),
      othIsArr = isArray(other),
      objTag = arrayTag,
      othTag = arrayTag;

  if (!objIsArr) {
    objTag = objToString.call(object);
    if (objTag == argsTag) {
      objTag = objectTag;
    } else if (objTag != objectTag) {
      objIsArr = isTypedArray(object);
    }
  }
  if (!othIsArr) {
    othTag = objToString.call(other);
    if (othTag == argsTag) {
      othTag = objectTag;
    } else if (othTag != objectTag) {
      othIsArr = isTypedArray(other);
    }
  }
  var objIsObj = objTag == objectTag,
      othIsObj = othTag == objectTag,
      isSameTag = objTag == othTag;

  if (isSameTag && !(objIsArr || objIsObj)) {
    return equalByTag(object, other, objTag);
  }
  if (!isLoose) {
    var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
        othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');

    if (objIsWrapped || othIsWrapped) {
      return equalFunc(objIsWrapped ? object.value() : object, othIsWrapped ? other.value() : other, customizer, isLoose, stackA, stackB);
    }
  }
  if (!isSameTag) {
    return false;
  }
  // Assume cyclic values are equal.
  // For more information on detecting circular references see https://es5.github.io/#JO.
  stackA || (stackA = []);
  stackB || (stackB = []);

  var length = stackA.length;
  while (length--) {
    if (stackA[length] == object) {
      return stackB[length] == other;
    }
  }
  // Add `object` and `other` to the stack of traversed objects.
  stackA.push(object);
  stackB.push(other);

  var result = (objIsArr ? equalArrays : equalObjects)(object, other, equalFunc, customizer, isLoose, stackA, stackB);

  stackA.pop();
  stackB.pop();

  return result;
}

/**
 * A specialized version of `baseIsEqualDeep` for arrays with support for
 * partial deep comparisons.
 *
 * @private
 * @param {Array} array The array to compare.
 * @param {Array} other The other array to compare.
 * @param {Function} equalFunc The function to determine equivalents of values.
 * @param {Function} [customizer] The function to customize comparing arrays.
 * @param {boolean} [isLoose] Specify performing partial comparisons.
 * @param {Array} [stackA] Tracks traversed `value` objects.
 * @param {Array} [stackB] Tracks traversed `other` objects.
 * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
 */
function equalArrays(array, other, equalFunc, customizer, isLoose, stackA, stackB) {
  var index = -1,
      arrLength = array.length,
      othLength = other.length;

  if (arrLength != othLength && !(isLoose && othLength > arrLength)) {
    return false;
  }
  // Ignore non-index properties.
  while (++index < arrLength) {
    var arrValue = array[index],
        othValue = other[index],
        result = customizer ? customizer(isLoose ? othValue : arrValue, isLoose ? arrValue : othValue, index) : undefined;

    if (result !== undefined) {
      if (result) {
        continue;
      }
      return false;
    }
    // Recursively compare arrays (susceptible to call stack limits).
    if (isLoose) {
      if (!arraySome(other, function(othValue) {
            return arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB);
          })) {
        return false;
      }
    } else if (!(arrValue === othValue || equalFunc(arrValue, othValue, customizer, isLoose, stackA, stackB))) {
      return false;
    }
  }
  return true;
}

/**
 * A specialized version of `baseIsEqualDeep` for comparing objects of
 * the same `toStringTag`.
 *
 * **Note:** This function only supports comparing values with tags of
 * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
 *
 * @private
 * @param {Object} value The object to compare.
 * @param {Object} other The other object to compare.
 * @param {string} tag The `toStringTag` of the objects to compare.
 * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
 */
function equalByTag(object, other, tag) {
  switch (tag) {
    case boolTag:
    case dateTag:
      // Coerce dates and booleans to numbers, dates to milliseconds and booleans
      // to `1` or `0` treating invalid dates coerced to `NaN` as not equal.
      return +object == +other;

    case errorTag:
      return object.name == other.name && object.message == other.message;

    case numberTag:
      // Treat `NaN` vs. `NaN` as equal.
      return (object != +object)
        ? other != +other
        : object == +other;

    case regexpTag:
    case stringTag:
      // Coerce regexes to strings and treat strings primitives and string
      // objects as equal. See https://es5.github.io/#x15.10.6.4 for more details.
      return object == (other + '');
  }
  return false;
}

/**
 * A specialized version of `baseIsEqualDeep` for objects with support for
 * partial deep comparisons.
 *
 * @private
 * @param {Object} object The object to compare.
 * @param {Object} other The other object to compare.
 * @param {Function} equalFunc The function to determine equivalents of values.
 * @param {Function} [customizer] The function to customize comparing values.
 * @param {boolean} [isLoose] Specify performing partial comparisons.
 * @param {Array} [stackA] Tracks traversed `value` objects.
 * @param {Array} [stackB] Tracks traversed `other` objects.
 * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
 */
function equalObjects(object, other, equalFunc, customizer, isLoose, stackA, stackB) {
  var objProps = keys(object),
      objLength = objProps.length,
      othProps = keys(other),
      othLength = othProps.length;

  if (objLength != othLength && !isLoose) {
    return false;
  }
  var index = objLength;
  while (index--) {
    var key = objProps[index];
    if (!(isLoose ? key in other : hasOwnProperty.call(other, key))) {
      return false;
    }
  }
  var skipCtor = isLoose;
  while (++index < objLength) {
    key = objProps[index];
    var objValue = object[key],
        othValue = other[key],
        result = customizer ? customizer(isLoose ? othValue : objValue, isLoose? objValue : othValue, key) : undefined;

    // Recursively compare objects (susceptible to call stack limits).
    if (!(result === undefined ? equalFunc(objValue, othValue, customizer, isLoose, stackA, stackB) : result)) {
      return false;
    }
    skipCtor || (skipCtor = key == 'constructor');
  }
  if (!skipCtor) {
    var objCtor = object.constructor,
        othCtor = other.constructor;

    // Non `Object` object instances with different constructors are not equal.
    if (objCtor != othCtor &&
        ('constructor' in object && 'constructor' in other) &&
        !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
          typeof othCtor == 'function' && othCtor instanceof othCtor)) {
      return false;
    }
  }
  return true;
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

module.exports = baseIsEqual;

},{"lodash.isarray":35,"lodash.istypedarray":49,"lodash.keys":46}],46:[function(require,module,exports){
/**
 * lodash 3.1.2 (Custom Build) <https://lodash.com/>
 * Build: `lodash modern modularize exports="npm" -o ./`
 * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 * Available under MIT license <https://lodash.com/license>
 */
var getNative = require('lodash._getnative'),
    isArguments = require('lodash.isarguments'),
    isArray = require('lodash.isarray');

/** Used to detect unsigned integer values. */
var reIsUint = /^\d+$/;

/** Used for native method references. */
var objectProto = Object.prototype;

/** Used to check objects for own properties. */
var hasOwnProperty = objectProto.hasOwnProperty;

/* Native method references for those with the same name as other `lodash` methods. */
var nativeKeys = getNative(Object, 'keys');

/**
 * Used as the [maximum length](http://ecma-international.org/ecma-262/6.0/#sec-number.max_safe_integer)
 * of an array-like value.
 */
var MAX_SAFE_INTEGER = 9007199254740991;

/**
 * The base implementation of `_.property` without support for deep paths.
 *
 * @private
 * @param {string} key The key of the property to get.
 * @returns {Function} Returns the new function.
 */
function baseProperty(key) {
  return function(object) {
    return object == null ? undefined : object[key];
  };
}

/**
 * Gets the "length" property value of `object`.
 *
 * **Note:** This function is used to avoid a [JIT bug](https://bugs.webkit.org/show_bug.cgi?id=142792)
 * that affects Safari on at least iOS 8.1-8.3 ARM64.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {*} Returns the "length" value.
 */
var getLength = baseProperty('length');

/**
 * Checks if `value` is array-like.
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
 */
function isArrayLike(value) {
  return value != null && isLength(getLength(value));
}

/**
 * Checks if `value` is a valid array-like index.
 *
 * @private
 * @param {*} value The value to check.
 * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
 * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
 */
function isIndex(value, length) {
  value = (typeof value == 'number' || reIsUint.test(value)) ? +value : -1;
  length = length == null ? MAX_SAFE_INTEGER : length;
  return value > -1 && value % 1 == 0 && value < length;
}

/**
 * Checks if `value` is a valid array-like length.
 *
 * **Note:** This function is based on [`ToLength`](http://ecma-international.org/ecma-262/6.0/#sec-tolength).
 *
 * @private
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
 */
function isLength(value) {
  return typeof value == 'number' && value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
}

/**
 * A fallback implementation of `Object.keys` which creates an array of the
 * own enumerable property names of `object`.
 *
 * @private
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of property names.
 */
function shimKeys(object) {
  var props = keysIn(object),
      propsLength = props.length,
      length = propsLength && object.length;

  var allowIndexes = !!length && isLength(length) &&
    (isArray(object) || isArguments(object));

  var index = -1,
      result = [];

  while (++index < propsLength) {
    var key = props[index];
    if ((allowIndexes && isIndex(key, length)) || hasOwnProperty.call(object, key)) {
      result.push(key);
    }
  }
  return result;
}

/**
 * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
 * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
 *
 * @static
 * @memberOf _
 * @category Lang
 * @param {*} value The value to check.
 * @returns {boolean} Returns `true` if `value` is an object, else `false`.
 * @example
 *
 * _.isObject({});
 * // => true
 *
 * _.isObject([1, 2, 3]);
 * // => true
 *
 * _.isObject(1);
 * // => false
 */
function isObject(value) {
  // Avoid a V8 JIT bug in Chrome 19-20.
  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
  var type = typeof value;
  return !!value && (type == 'object' || type == 'function');
}

/**
 * Creates an array of the own enumerable property names of `object`.
 *
 * **Note:** Non-object values are coerced to objects. See the
 * [ES spec](http://ecma-international.org/ecma-262/6.0/#sec-object.keys)
 * for more details.
 *
 * @static
 * @memberOf _
 * @category Object
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of property names.
 * @example
 *
 * function Foo() {
 *   this.a = 1;
 *   this.b = 2;
 * }
 *
 * Foo.prototype.c = 3;
 *
 * _.keys(new Foo);
 * // => ['a', 'b'] (iteration order is not guaranteed)
 *
 * _.keys('hi');
 * // => ['0', '1']
 */
var keys = !nativeKeys ? shimKeys : function(object) {
  var Ctor = object == null ? undefined : object.constructor;
  if ((typeof Ctor == 'function' && Ctor.prototype === object) ||
      (typeof object != 'function' && isArrayLike(object))) {
    return shimKeys(object);
  }
  return isObject(object) ? nativeKeys(object) : [];
};

/**
 * Creates an array of the own and inherited enumerable property names of `object`.
 *
 * **Note:** Non-object values are coerced to objects.
 *
 * @static
 * @memberOf _
 * @category Object
 * @param {Object} object The object to query.
 * @returns {Array} Returns the array of property names.
 * @example
 *
 * function Foo() {
 *   this.a = 1;
 *   this.b = 2;
 * }
 *
 * Foo.prototype.c = 3;
 *
 * _.keysIn(new Foo);
 * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
 */
function keysIn(object) {
  if (object == null) {
    return [];
  }
  if (!isObject(object)) {
    object = Object(object);
  }
  var length = object.length;
  length = (length && isLength(length) &&
    (isArray(object) || isArguments(object)) && length) || 0;

  var Ctor = object.constructor,
      index = -1,
      isProto = typeof Ctor == 'function' && Ctor.prototype === object,
      result = Array(length),
      skipIndexes = length > 0;

  while (++index < length) {
    result[index] = (index + '');
  }
  for (var key in object) {
    if (!(skipIndexes && isIndex(key, length)) &&
        !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
      result.push(key);
    }
  }
  return result;
}

module.exports = keys;

},{"lodash._getnative":50,"lodash.isarguments":51,"lodash.isarray":35}]},{},[1])(1)
});
;