[WIP] Quiet Hours (3/3)

Quiet Hours: Allow disabling phone ringer (3/3)
@kufikugel

Signed-off-by: Andre Saddler  <dresadd09691@gmail.com>
Change-Id: I4865720922733583ba3a8a56358dff87faa725bb
Conflicts:
	src/com/android/phone/CallNotifier.java