Add wallpaper pickers to seperate package [2/2]

Change-Id: I233b90aa52b5a8c408fa3adfe3bdad07330cc2ad

Conflicts:

	res/xml/lockscreen_interface_settings.xml
	res/xml/theme_settings.xml
Themes: List ThemeSettings as a valid fragment

This fixes a force close in Settings in tablet mode.

Change-Id: I6542feba0d0fa8491ab9e092a90709d1034ffca8

Conflicts:

	src/com/android/settings/Settings.java
Remove CM Performance, add PerformanceControl back to settiings.