first take at new audio dialogs
Merge remote-tracking branch 'upstream/merge-polling-with-master' into fix-webrtc-dialogs
removed the background from the listen only indicator image
created an audio selection window to choose your stream type
removed some unused managers from the phone module
Merge remote-tracking branch 'upstream/merge-polling-with-master' into fix-webrtc-dialogs

Conflicts:
	bigbluebutton-client/src/org/bigbluebutton/main/views/MainApplicationShell.mxml
	bigbluebutton-client/src/org/bigbluebutton/modules/users/views/MediaItemRenderer.mxml
fixed a null pointer exception when the mic is not found
added presenterShareOnly, error popup when webrtc fails with option to fallback to flash
moved the audio selection window strings to the locale file
if presenterShareOnly is true don't switch moderators to listen only when presenter changes
moved the webrtc call failed alertbox text to locales
Merge pull request #330 from SenecaCDOT-BigBlueButton/fix-webrtc-dialogs

add audio selection window