Add System sound option for quiet hours (2/2)

Change-Id: If68ccee1aa23cd93326c414d209db151bfbc2347
quiethours: refresh TimeRangePreference preference on resume

JIRA: CYAN-5223
https://jira.cyanogenmod.org/browse/CYAN-5223
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>

Change-Id: Ia06a21aad36e757c0ed89ac81305f9b531f811fd
Auto brightness configuration UI (2/2).

Change-Id: I6c56a48fa2145c58a5f203ed56051451ef3f977d

Conflicts:
	res/values-cs/strings_custom.xml