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
Settings: Use solid actionbar

When the action bar is visible, use the solid holo dark theme used
 by the rest of the Settings app

Change-Id: I41deeaa1988d59e121e6e81bcf3f42c570341f0b
Merge "Settings: Use solid actionbar" into cm-11.0
Merge "Forward port Status Bar settings (2/2)" into cm-11.0