Add new themes items to personalization menu

Squashed commits:
https://github.com/CyanogenMod/android_packages_apps_Settings/commit/f23be04ba805ba32a10165f2eb007dead6421d9e
https://github.com/CyanogenMod/android_packages_apps_Settings/commit/6eed06491a6c0fe24492c66b867b4f0af7182c85
https://github.com/CyanogenMod/android_packages_apps_Settings/commit/63544963a48cd220a48a38a8d5cb578eaf2032ff

Bring in logic for the new chooser. If TMO chooser is installed it will get
first priority.

Change-Id: Ia8e852e5e5ad2465d0b9b73f16c7080a7337bb8a

Conflicts:
	res/values/cm_strings.xml
	res/xml/settings_headers.xml