RC: Ribbons Icon Gravity

Change-Id: I7b6a7eb01f7d1b073b11f336aa68e00605a79507
Signed-off-by: Steve Spear <steve.spear@openpeak.com>
Introduce Toast Animations (courtesy AOSB)

Change-Id: I6fa2def4f1cfcc10698eb754067d068df5f376c7