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.
Merge branch 'master' into bt_refactored_testing
Update Buildtarget to 4.4
- Solved Warning "Resource leak: 'zipFile' is never closed"
- Better Handling of closing process (using finally)
- Some Renaming
change global Strings