New test binary and settings.

• fix: don't display negative battery drain values
• fix: screen is properly unlocked/relocked if power button long press doesn't shutdown
• setting to shutdown system when power button is long pressed and screen is locked

It appears that MCE won't shutdown if screen is locked, I confirmed this with SystemUI. So I added a setting to enable ASUI to shutdown when screen is locked and power button is long pressed. This setting is disabled by default because SystemUI didn't support it and also because some might have changed MCE's long press action.