Make ViewPropertyAnimator ListView-animation-capable

ViewPropertyAnimator now sets the hasTransientState flag in View to tell
it when an animation has started (and unsets it when the animation ends).
This allows ListView to retain views with transient state without recycling them,
which makes ListView item animation possible (because you can't animate a View
if it's being recycled and reused elsewhere as it moves into and out of view).

Change-Id: I75c26a7a56474a76428500afef03a80bb46e04e0