Import all necessary parts for the SystemMenu from LunaSysMgr

Signed-off-by: Simon Busch <morphis@gravedo.de>
WindowManager: don't try to focus launcher application

Trying to focus the launcher application will end up in state clash. Just type launcher
will stay forever the current focussed app while window manager is happily switching its
state in the background.

Signed-off-by: Simon Busch <morphis@gravedo.de>
StatusBar: BatteryIndicator: query relevant services directly

Signed-off-by: Simon Busch <morphis@gravedo.de>