SystemUI: Notifictation counter

Change-Id: I65a0575b3d0f3be34d9e6cb4b512196258361fd7

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java

Conflicts:
	core/java/android/provider/Settings.java
	packages/SystemUI/src/com/android/systemui/statusbar/StatusBarIconView.java

Conflicts:
	core/java/android/provider/Settings.java