Ready to use localstream-screen and remotestream-screen events.
RTC submodule updated.
Fixing bug with 'screen' events in QS.
RTC submodule setted to branch audio-video-screensharing.
RTC submodule upgraded.
RTC submodule upgraded.
RTC submodule upgraded.
Upgrading RTC submodule.
Upddate RTC submodule.
Merge branch 'audio-video-screensharing' into trunk
Merge branch 'trunk' of https://github.com/Quobis/QoffeeSIP into trunk

Conflicts:
	src/sipstack.coffee