Settings: Quiet Hours Automatic Switch (2/2)

Given that we have settings that may be useful
	for any time the phone is set to silent
	(automatic reponse/bypass especially):
	enable an automatic switch method

Change-Id: I6abeb6f1716ed230fdb11b426a915acb08c3122b
Merge "Settings: Quiet Hours Automatic Switch (2/2)" into du44
Merge remote-tracking branch 'upstream/du44' into du44