Force mute participant mics when video plays
Merge branch 'master' into session-video-mute
Add "awaiting start" group video state
Re-render controls on awaiting start
Fix icon class
Mute on video add even if player isn't ready
Don't send null hangout embed ID's
Remove unused _muteSentinel
Merge branch 'master' into session-video-mute
Isolate CREATE_EVENT test (#267)
Mute on player state change, not on embed.
Make test.create-event.selenium.js more reliable (issue #267)
Merge branch 'session-video-mute'