Add people lookup settings keys

Change-Id: I2ff9bb7684d04f4f9b640939c7db269873aa3308

Conflicts:
	core/java/android/provider/Settings.java
Navigation Bar: Toggle last app on recents button long press
Base:Quiet Hours[1/2]

based on cm && based on Omni's adaptation & AOSPA

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

Conflicts:
	services/java/com/android/server/NotificationManagerService.java
VolumePanel: Don't force show NavBar

Fixed:Navigation bar is shown while changing volume while in immersive mode.
Swap volume buttons when the screen is rotated by 90 or 180 degrees

Change to default behaviour not configurable due that it is now
more natural

Change-Id: I323b647066e8c73fac60067141d1add7b2f9962d

Conflicts:
	media/java/android/media/AudioManager.java