Settings: Cleanup, move slimrecents from Accessibility to Display

Change-Id: Iceb8728ac9f7b41efd32f7d9e6495d8ab51faf59

Conflicts:
	res/values/cm_strings.xml
	res/xml/accessibility_settings.xml
	res/xml/display_settings.xml
	src/com/android/settings/accessibility/AccessibilitySettings.java
Settings: Move recent app out of display

Change-Id: I1b7ba64b29406a1f6823476121c2f267d4063e86

Conflicts:
	AndroidManifest.xml
	res/xml/display_settings.xml