Delivers VideoEvent.VIDEO_REMOVED for the local visual component of desktop streaming/sharing. Reported by Yana Stamcheva.
Do not show screens selector when using partial desktop streaming. Properly handle DesktopSharingFrame location when using two monitors in all directions (i.e. second monitor on TOP, BOTTOM, LEFT or RIGHT of the first ones).
When using partial desktop streaming, allow to switch from initial screen to another (switch occurs when upper left corner of the region is in another screen).
Uses Email and Phone as categories and Home, Work and Mobile as labels of the ContactDetails provided by the ContactSourceService implementations for Mac OS X Address Book and Microsoft Outlook.