* re-structure tracks * publication.track is now a LocalTrack or RemoteTrack * restartTrack when unmute * stop/start on restartTrack * move to mute/unmute * format * remove comment
* re-structure tracks * publication.track is now a LocalTrack or RemoteTrack * restartTrack when unmute * stop/start on restartTrack * move to mute/unmute * format * remove comment