* 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
Make toolbar's microphone button enabled whenever there are any
'audioinput' devices available and allow to add audio during
the conference even if microphone permissions were denied on startup.
Dynamically enables/disables the toolbar video button. Prior to that
commit if we would start with no video there would be no way to enable
it later on.
Lyubo Marinov
Paweł Domas