Drone
 - fixed strings.xml
 - renamed DroneStageListener to  DroneConnection
 - Anführungszeichen zu viel: "I Agree
 - renamed StageListenerInterface to StageResourceInterface
 - renamed StageResourceInterface members to be distinct from Activity methods
Merge pull request #976 from Catrobat/drone2

Drone Refactoring
Project upload disabled
Drone: App name changed to >Pocket Drone<
Drone enable drone feature by default
Drone rename application package
Drone: reset config to default on connect