Pie:powerbutton 1/2

Change-Id: I3f391c0f5fd4e60bb4c9c875b9ecaa70672c2aac

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/PieControl.java
	packages/SystemUI/src/com/android/systemui/statusbar/pieview/PieMenu.java