make settings menu themable

Move colors to resources and use them instead.

Change-Id: If43440bf7bf6dbed360621a0313f8624fe663552
Signed-off-by: Dirk Rettschlag <dirk.rettschlag@gmail.com>

Conflicts:
	src/com/android/camera/ui/PieRenderer.java
Merge branch 'kitkat' of github.com:X-ROM/android_packages_apps_Camera2 into kitkat