Add ADB QuickSettings Tile as optional tile [1/2]

ADB Tile needs to be enabled in development settings

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/res/values/pa_strings.xml
	packages/SystemUI/src/com/android/systemui/statusbar/phone/QuickSettings.java
Merge branch 'kitkat-test' into kitkat-themes