Settings: Forward port Expanded desktop capability

 Changes to be committed:
	modified:   res/values/config.xml
	modified:   res/values/strings.xml
	new file:   res/xml/power_menu_settings.xml
	new file:	modified:   res/xml/settings_headers.xml
	new file:	new file:   src/com/android/settings/cyanogenmod/PowerMenu.java
	new file:#