Replace SU Shell by Chainfire
https://github.com/Chainfire/libsuperuser/blob/639cd1d393ffc1d004da1c25ac3a6accaab04ae7/libsuperuser/src/eu/chainfire/libsuperuser/Shell.java
0.3.5
	- Features
		- Possibility to choose between real Hall or simule with Proximity sensor (under Root menu)
		- Change licencing to Apache
		- Use eu.chainfire.libsuperuser in place of net.pocketmagic.android.eventinjector
		- All su access through eu.chainfire.libsuperuser.Shell
		- Removed unused library import
		- Suppress navigation bar (Softkey)
		- Remove su call from main thread
		- To test: gotosleep instead of lock if installed as SystemApp
	- Remove
		- Proximity sensor use
	- Notes
		- Next version add settings to choose between Proximity sensor or Hall Event?