Animations fix black space with enter only and translucent reverse exit

Change-Id: I7e516805639307a8d9e0b2e66aac2c05fdb69c5f
Signed-off-by: Steve Spear <steve.spear@openpeak.com>

Conflicts:

	core/java/com/android/internal/util/cm/AwesomeAnimationHelper.java
	core/res/res/values/symbols_custom.xml
fix build
action_null to animation_blank