Increase lock screen widget limit from 5 to 9

Change-Id: If24867b7a6d25ab898b746c487373c32ba96b0cd
Add Extended Power Menu (Reboot, Recovery, Download & Screenshot Options)

Add support for Extened Power Menu in SuperNexus.
-Reboot
-Recovery
-Download/Bootloader
-Fastboot
-Screenshot

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