Long press recents to switch to last app

Change-Id: I8c52a7b40d4229d523bccc1c9246673b82f5b48b

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/res/values/pa_strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java
	packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBar.java

fix recents long press commit

Change-Id: I9feb5c3c84d391a6959ecb6bc682f07e83c33669