Disable screen dimming when charging (2/2), new setting to disable screen dimming if stay awake is enabled. thanks @maxwen

Original commit: https://github.com/AICP/packages_apps_Settings/commit/5cafd36217708be518de04a5eae63a5050d02d69

PS3: fix derps but it still doesent compile

Conflicts:
	res/values/strings.xml
	src/com/android/settings/DevelopmentSettings.java

Change-Id: I93bac91bd59ba97041379f4dbed00d1b212aefd1