Add LCD Density changer

Thanks to SlimROMs and Carbon!

Signed-off-by: iceandfire <arhamjamal@gmail.com>

Conflicts:
	AndroidManifest.xml
	res/values/arrays.xml
	res/values/strings.xml
	res/xml/preference_headers.xml
	src/com/aokp/romcontrol/util/CMDProcessor.java