Forward port Status Bar settings (2/2)

Signal / Clock / Notification Count / Brightness adjustment

Forward port from cm-10.2, adjusted for 4.4

Change-Id: I1632b6454a3fd5240179dfed34b1f332a7a37cda
Merge "Forward port Status Bar settings (2/2)" into cm-11.0
merge remote

Change-Id: Id59af338469214e4f5b30c65a214861b0d113a78