Animation control

started with AOKP's "custom system animations" by steve spear
as a base and added listview animations as well as others

to do: add more animations and custom interpolators control for system animations

Change-Id: I3d0508ede77ea515e5439d7ff4aae0c70f1fde61

Conflicts:
	AndroidManifest.xml
	res/layout/slider_preference.xml
	res/xml/prefs_animation_controls.xml