[1/4]Quiet Hours

based on cm && based on Omni's adaptation

PS3: Whitespace fixups
PS4: fix imports for QHHelper
PS5: We don't have battery LED enabled

Signed-off-by: Andre Saddler <dresadd09691@gmail.com>
Change-Id: I38e8560297099629aed94ee001da7f1ebaa04dac

Conflicts:
	core/java/android/provider/Settings.java
	services/java/com/android/server/NotificationManagerService.java