Fix logout.
Merge pull request #39 from tOkeshu/fix-logout

Fix logout.
Increase the ping time to 20s
Remove the channelPing function
Merge pull request #40 from tOkeshu/higher-ping-time

Increase the ping time to 20s
Mute local videos to avoid the huge local echo we have since gum is called for both audio and video at once.
Merge pull request #41 from fqueze/mute-local-video

Mute local videos to avoid the huge local echo we have since gum is call...
Merge https://github.com/mozilla/socialapi-demo