* ref: video muted state
Get rid of 'videoMuted' flag in conference.js
* ref: audio muted state
Get rid of 'audioMuted' flag in conference.js
* fix(conference.js|API): early audio/video muted updates
* ref(conference.js): rename isVideoMuted
Rename isVideoMuted to isLocalVideoMuted to be consistent with
isLocalAudioMuted.
* doc|style(conference.js): comments and space after if
* ref: move 'setTrackMuted' to functions
* fix(tracks/middleware): no-lonely-if
* ref(features/toolbox): get rid of last argument
* ref(defaultToolbarButtons): rename var
99ce46cfa8