* upstream/master: (47 commits)
  Added ExitApplicationEvent.as
  HTML 5 - changed css for divider
  No more display the LoggedOutWindow.mxml if the user has explicitly clicked on yes to confirm the logout action.
  Link "enableEmojiStatus" enabled/disabled to the emoji button.
  initialize html5StunTurn properly - complication from PR 3628
  fix bug preventing stun/turn call
  fix lint issues
  rework userPermissions to allow mixture of role/status based actions
  Handle exception when sending message to client
  HTML5 - changed divider of record button
  Change the emoji menu icon to the happy face.
  don't show promote option for presenter user'
  remove glow prop and use className to change style
  reorganize user actions
  clean up
  improve userPermissions by rearranging logic
  allow for mute/unmute by moderator
  rename css class
  Display breakout rooms user names in row tooltip.
  fix setPresenter and kick user
  ...

Breakout rooms UI imporve

Don't display the LoggedOutWindow.mxml if the user asked to logout

Webcams only for moderator fix

HTML5 - changed divider of recorded icon

Avoid converting some pptx files with certain properties and inform the user.

No more display the LoggedOutWindow.mxml if the user has explicitly clicked on yes to confirm the logout action.

Link "enableEmojiStatus" enabled/disabled to the emoji button.

initialize html5StunTurn properly - complication from PR 3628

bbb-lti: Fix for issue #3595

fix bug preventing stun/turn call. Fixes #3627

Audio Error notification

Add Transaprent Base for Audio Modal only

Mute button glow indicator

html5client: Improve on actions and permissions

recording: Run the 'ser' fixup tool on deskshare videos, too

 Handle exception when sending message to client

 Handle exceptions properly when sending message to client. We were not handling the
 exception so when it occured, the thread stopped and we can't send messages from
 server to client anymore.