Stylus gestures features (2/2)

patch set 4:removed white spaces
patch set 5:removed tabs and reformatted
patch set 6:added screenshot functionality - WIP

Change-Id: I45f49b6f8b39eea2e40cd9d0bacec34a92852300

Conflicts:
	res/values/arrays.xml
	res/values/strings.xml
	res/xml/language_settings.xml