MOSYNC-2867 Additions for maToast
MOSYNC-2950 Orientation new events on iOS
MOSYNC-2978 Send orientation changed event for the parent screen, and all the screen children
MOSYNC-2978 Send orientation events for all tab/stack children, on Android
MOSYNC-2978 Fix orientation events on WP7
MOSYNC-2978 Updated addChild for StackScreen and TabScreen to handle children list correctly
MOSYNC-2978 Notify child screens of orientation chanegs on iOS
Modifications after code review  for MOSYNC-2978
Merge remote-tracking branch 'emma/master' into orientation
MOSYNC-2950 Modifications after code review
Merge remote-tracking branch 'emma/master' into orientation
MOSYNC-2950 "Handle orientation events on iOS: send orientation value, and new events"
Small additions after the code review.