Make reverse lookup implement the phone number lookup interface (2/2)

Change-Id: I66396b21cf4573e017bc2307441cde1959d34154
InCallUI: Stop the running animation before hide the icon

There is a running alpha animation on the state icon,
so it can be shown.

Before hide the state icon, clear it's animation firstly
and do not start animation unless it is visible.

CRs-Fixed: 741096

Change-Id: Id14d9f6e8e5d968b9d0497945833f7e6e78e1b06
Hide some incall buttons

Conflicts:
	src/com/android/incallui/CallButtonFragment.java