start/stop observing for brightness slider in window attachement overrides

Change-Id: Ief173b58c5c4c8918856342361b4944771e3567f
Return: Always show battery on Keyguard [1/2]

Based on the feature by burnsra in CM7

Authored by Blunden
Tweaked by DvTonder
Tweaked by kufikugel

Change-Id: I02cc3a0d996ca1fb3c96c6847865655be5518434

Conflicts:
	core/java/android/provider/Settings.java
QuickSettings : Quick Collapse [1/2]

Credits: Danesh M

Change-Id: I0257c7819cc1ccb5d0a092dc23fb9fa4ccec5c3b

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