Settings : Initial slim lockscreen shortcuts

Thanks to slimrom

Change-Id: I0961deac1a30e2938b71a717ad6b7896e1da8bb3

Conflicts:
	res/values/ackdp_arrays.xml
	res/values/rr_attrs.xml
	res/values/rr_strings.xml
	res/xml/rr_main_settings.xml
	res/xml/security_settings_pin.xml
	src/com/android/settings/Settings.java