- fix issue where viewer stop sharing webcam when switching presenter
   https://code.google.com/p/bigbluebutton/issues/detail?id=1641
 - remove tracking of how many unread private tabs a user has as we don't really need that level of detail
   - fix: https://code.google.com/p/bigbluebutton/issues/detail?id=1640
 - stop propagation of click event to prevent webcam window from resizing.
   fix: https://code.google.com/p/bigbluebutton/issues/detail?id=1642
update italian translation strings

0.8 is the default version set for all the "locales", with the value 0.81 it fails while loading the client in the browser. I also changed it in Transifex.
Merge branch 'webrtc_support' of github.com:gugat/bigbluebutton
update italian locale
set freeswitch server as variable