Fix signalmaster crash if vroomsession isn't found

signalmaster/server.js

@@ -66,6 +66,7 @@ io.configure(function(){
         console.log('Cookie vroomsession not found, access unauthorized');
         accept('vroomsession cookie not found', false);
       }
+      else{
         // vroomsession is base64(user:room:token) so let's decode this !
         session = new Buffer(session, encoding='base64');
         var tab = session.toString().split(':');
@@ -77,6 +78,7 @@ io.configure(function(){
           console.log('Forbidden chars found in either participant session, room name or token, sorry, cannot allow this');
           accept('Forbidden characters found', false);
         }
+        else{
           // Ok, now check if this user has joined the room (with the correct token) through vroom frontend
           checkRoom(room,token,user, function(res){
             if (res){
@@ -88,6 +90,8 @@ io.configure(function(){
             }
           });
         }
+      }
+    }
     else{
       accept('No cookie found', false);
     }