halo tweaks
	modified:   core/java/android/provider/Settings.java
Active display: Enable proximity sensor only when screen is off
	modified:   packages/SystemUI/src/com/android/systemui/statusbar/policy/activedisplay/ActiveDisplayView.java
Active display: Don't show active display while in call
	modified:   packages/SystemUI/src/com/android/systemui/statusbar/policy/activedisplay/ActiveDisplayView.java