robotium update form 4.3 to 4.3.1

ecsapeRegularExpressionMetaCharacters now not active. not neccessary under 4.3.1 robotium.
Merge pull request #851 from Catrobat/robotium_update_4_3_1

Robotium update to 4.3.1
fix Pixel compare and screenMode test
add passepartout
improve screenshot test
fix some other pixel tests
Merge pull request #861 from Catrobat/MaximizeMode

fix issue#857: In Maximize-Mode with different screen resolutions everything around the stage should be hidden
fix passepartout bugs
soundproblem for android 4.4 fixed.
testcases changed to robotium 4.3.1
Merge pull request #864 from Catrobat/issue##848

soundproblem for android 4.4 hotfixed.
Update Buildtarget to 4.4
Merge pull request #865 from Catrobat/target19

Update build target to 19 (4.4)
fix Passepartout size calculation
add test
fix some checkstyle errors
Merge pull request #867 from Catrobat/fixCheckstyleErrors

fix current checkstyle errors
Merge branch 'develop' into fixPassepartoutBugs
Make Bluetooth not a requirement anymore
Quickfix. No more double resizing of files.

Files are no longer double resized (e.g. on copy). Therefore they are no
longer destroyed on copy (neat!).
Merge pull request #868 from Catrobat/bt_not_required

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

fix passepartout bugs
remove % in change_size_by_brick
Terms of Use: UI test (should fail!)

UI test should fail since we use Test First, i.e., this is only the
test; the corresponding main code is not yet implemented!