BaseStatusBar: Dismiss heads up on backpress.

Change-Id: I5b6191657cf0b74d825eb653a6e82c33e0527aad
Framework: Rewrite Quiet Hours (2/3)

Added:
	New Toggle States.
		Toggle is now aware
		of if quiet hours
		is truly enabled or not.
		Enable "force" mode
		on click: turns quiet hours
		on / off
		Double-click to return
		to "timed" mode.

	New Features:
		Wifi Connected Requirement
		Battery Charging Requirement
		Individual day times

        Completely rewrote quiet hours
                to reduce system calls.
                No more calendar objects
                or checking three preferences
                and comparing their values
                on each quiet hours check.
                Reduce that to ONE preference
                check per preference

PS2: Ensure booted before firing intent

Change-Id: I61ef5afa32c5ff883129b9362423af7f724c5ac1

Conflicts:
	packages/SystemUI/src/com/android/systemui/quicksettings/QuietHoursTile.java
	services/java/com/android/server/NotificationManagerService.java