Settings : Fix CustomScreenColor when picking an image

Change-Id: I510b562eb0e9fb9b558380db5c5d6e818ba17d12
Move protected apps strings to cm_strings

Change-Id: I7099ac4a817fa3db8d418b329b9a3344aea1da69
Merge branch 'kitkat' of https://github.com/AOSPA/android_packages_apps_Settings into kitkat
Merge remote-tracking branch 'legacy/kitkat' into kitkat