SystemUI: make LinearColorBar themeable

Move colors to resources and use them instead.

Change-Id: If7b8af376da5c17e73e7f33e0c4cb5700e175909
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>
fb: change alert dialog to new 4.4 UI guidelines and add

Holo / Holo.Light switch to reflect it proper on the
different app styles

AOKP changes: use original holo colors

Change-Id: I8fee271f1e6b7d98103c5adb444b232e2c747d01
Merge "fb: change alert dialog to new 4.4 UI guidelines and add" into kitkat
Merge remote-tracking branch 'aokp/kitkat' into kitkat