Fix derp
Settings: Add screen color settings

Add "Screen Color" item in settings.
This function support set Hue, Saturation, Contrast and Intensity value,
and screen color will be changed by this settings.

Change-Id: I481cbe0f6524fd0899dab60b81f0093a25ba64c4

Conflicts:
	Android.mk
	res/xml/display_settings.xml
	src/com/android/settings/DisplaySettings.java