- start implementing echo test and join conference using webrtc
 - add bin-debug dir to ignore
i - do echo test and then join voice conference using webrtc
 - figure out how to display mic permissions for FF and Chrome
 - display different mic setting for ff and chrome
 - continue implementing mic settings for webrtc
 - implement user joining voice using webrtc
Merge branch 'merge-polling-with-master' of github.com:bigbluebutton/bigbluebutton into merge-polling-with-master