fix passepartout bugs
fix Passepartout size calculation
add test
Merge branch 'develop' into fixPassepartoutBugs
Make Bluetooth not a requirement anymore
Merge pull request #868 from Catrobat/bt_not_required

make Bluetooth not required #841
Merge pull request #862 from Catrobat/fixPassepartoutBugs

fix passepartout bugs
DroneService calls optimized
Merge branch 'master' into drone2