Do not hardcode stun and turn scheme

Instead, read a ful uri from the config, so you can specify turns if you want

conf/settings.ini.dist

@@ -9,11 +9,11 @@
 ;uri = 'https://vroom.exmple.com'
 
 [turn]
-; The stun server sent to client. You can set it to your own stun server
-;stun_server = 'stun.l.google.com:19302'
-; The turn server sent to cliet, you should set it to your own server
-;turn_server = ''
-; the realm used for turn accounts. You shouldn't have to change it
+; The stun server sent to client. You can set it to your own stun server. Takes a full stun uri as defined by rfc7064
+;stun_server = 'stun:stun.l.google.com:19302'
+; The turn server sent to cliet, you should set it to your own server. Takes a full turn uri as defined by rfc7065
+;turn_server = 'turns:my-turn-server.net:5349?transport=tcp'
+; the realm used for turn accounts. Must match the realm of your turn server
 ;realm = 'vroom'
 
 [email]

templates/default/join.html.ep

@@ -455,8 +455,8 @@
                    url: "<%= $config->{'signaling.uri'} %>",
                    peerConnectionConfig: {
                      iceServers: [
-                       {"url":"stun:<%= $config->{'turn.stun_server'} %>"},
-                       <%== ($config->{'turn.turn_server'} && $config->{'turn.turn_server'} ne '') ? "{\"url\":\"turn:$config->{'turn.turn_server'}\", \"username\":\"$room\", \"credential\":\"$turnPassword\"}":'' %>
+                       {"url":"<%= $config->{'turn.stun_server'} %>"},
+                       <%== ($config->{'turn.turn_server'} && $config->{'turn.turn_server'} ne '') ? "{\"url\":\"$config->{'turn.turn_server'}\", \"username\":\"$room\", \"credential\":\"$turnPassword\"}":'' %>
                      ]
                    },
                    localVideoEl: 'webRTCVideoLocal',