FW: Menu & home unlock [1/2]

picked by hand from:
https://github.com/CyanogenMod/android_frameworks_base/commit/d446b052a89b0996fb5a9839b5210fda312b3c85

Change-Id: Iea248a579345eb552ed6f016b99107dc32499c58

Conflicts:
	core/java/android/provider/Settings.java
	packages/Keyguard/src/com/android/keyguard/KeyguardHostView.java