added expanded desktop option

paranoid android's expanded desktop feature

 Changes to be committed:
	modified:   core/java/android/provider/Settings.java
	new file:   core/res/res/drawable-hdpi/ic_lock_expanded_desktop.png
	new file:   core/res/res/drawable-mdpi/ic_lock_expanded_desktop.png
	new file:   core/res/res/drawable-sw600dp-xhdpi/ic_lock_expanded_desktop.png
	new file:   core/res/res/drawable-xhdpi/ic_lock_expanded_desktop.png
	modified:   core/res/res/values/public.xml
	modified:   core/res/res/values/strings.xml
	modified:   policy/src/com/android/internal/policy/impl/GlobalActions.java
	modified:   policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
now

google icon

 Changes to be committed:
	new file:   packages/SystemUI/res/drawable-xhdpi/ic_navbar_googlenow.png