Drone create seperate class for drone initialisation
Drone add tests for seperate prestage initialisation
Merge pull request #983 from Catrobat/drone2-DRONE-26

Drone Refactor PreStaegActivity Drone initialisation
Merge branch 'master' into nfcTesting

Conflicts:
	catroid/src/org/catrobat/catroid/stage/PreStageActivity.java
	catroid/src/org/catrobat/catroid/ui/ProgramMenuActivity.java
	catroid/src/org/catrobat/catroid/ui/ScriptActivity.java