Import all necessary parts for the SystemMenu from LunaSysMgr

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

Conflicts:
	qml/StatusBar/AppMenu.qml
	qml/StatusBar/SystemIndicators.qml
* dismiss menu when tapped anywhere outside
* fix hidden state when menu is dimissed
* fix setPrefence service calls
* added system toggle for airplaneMode, rotationLock, and mute
* added setMute function call for VolumeControl
* added wifi to system menu
* update battery percentage in system menu
* fix battery percentage update
Merge pull request #141 from thrrgilag/thrrgilag/systemmenu-clean

thrrgilag/systemmenu