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
Settings: Add LongClick SwitchButton (2/2)

Change-Id: I97393ff5c2ae46f8193fb3be8bd723ecc09e3ebc

Patchset: 1
https://gerrit.slimroms.net/#/c/1532/