Fix for MOSYNC-2687 "stackScreenScreenPopped( ... ) is always called with null for fromScreen & toScreen."
Fix for MOSYNC-2683 "iOS: PlatformRequestDemo works in simulator, but crashes on device"
Fix for MOSYNC-2694 "CameraDemo doesn't work on iPhone simulator with iOS 6.0"
Fix for MOSYNC-2700 "CameraDemo panic on iOS Simulator"
Merge pull request #326 from grigaci/ThreeTwoOne

Fix for MOSYNC-2687