- disable webrtc screen sharing

Merge branch 'merge-webrtc-screenshare-2' of https://github.com/perroned/bigbluebutton into perroned-merge-webrtc-screenshare-2

 Add hook to pause screen sharing.

Presentation controls

Use correct directories and service names in daily cron

Some of the stuff has gotten moved around in the 1.1 dev process.

removes HTML5 whiteboard extra code, whiteboard css trailing space, and rename service in slide controls

Make listenBtn in RoomActionsRenderer aware of the two different audio states

 Logging

Make listenBtn in RoomActionsRenderer aware of the two different audio states: the user in the audio conference and he is able to transfer & the user is transferred to a breakout room conference.

 Add more logging to determine if user has successfully shared his desktop or not.

 Cleanup

Make the CC updates smarter

 Joining voice conf of breakout room

 A moderator should be able to listen-in on the breakout room. During a previous merge, the
 handler of the transfer message in FSESL was accidentally removed. The user isn't able to
 the breakout room's voice conference anymore.

Fixes login in html when flash is not supported

 Remove unneeded code which is part of the old desktop sharing.