Add focus and blur handlers and events to View

Add focus and blur handlers and events to View
Add Text change and return handler/events for text views/areas.

Add Text change and return handler/events for text views/areas.
Animate Android windows opening

http://developer.android.com/reference/android/R.anim.html
http://docs.appcelerator.com/titanium/latest/#!/api/Titanium.UI.Window