SlimPie : slightly tune down edge sensitivity
base: Option to hide overflow menu button (1/2)

Showing some love to devices with hardware keys lol

Change-Id: I4e6b3a0df4e3b31b34d9692333ea0566202a0b58

Conflicts:
	core/java/android/provider/Settings.java
	core/java/com/android/internal/view/ActionBarPolicy.java