Add Screen Security settings

Patch Set 1:	Quick Unlock
Patch Set 2:	Lockscreen Vibrate
Patch Set 3:	Slide Lock Delay
Patch Set 4:	Menu Unlock
Patch Set 5:    Rebase
Patch Set 6:    Home Unlock

Change-Id: Ie1ccaec43ca75474e92f96c60e15d7b75796ac5f

Conflicts:
	core/java/android/provider/Settings.java
	core/res/res/values/symbols.xml
	policy/src/com/android/internal/policy/impl/keyguard/KeyguardViewMediator.java