Keyguard: smooth background change derp fixes

no idea how this could happened. Cleanup, fixes and updates (thanks kyril)

Change-Id: I0296a1d0d7df3dc68c2fde34584ed8c46eef57f3
Signed-off-by: iceandfire <arhamjamal@gmail.com>

Conflicts:
	packages/Keyguard/src/com/android/keyguard/KeyguardViewManager.java
Derp

Change-Id: I77b8a4fd838879f4ee5b8d3accb87c10e9089318
Signed-off-by: iceandfire <arhamjamal@gmail.com>