Added Expanded desktop mod (see credit below)

Thanks to Jesús David for original author and CM

Conflicts:
	core/java/android/provider/Settings.java
	core/res/res/values/public.xml
	policy/src/com/android/internal/policy/impl/GlobalActions.java

Change-Id: I9a27001d001c01390d45b8945c58e1b1a4a0fcd6