Remove some lint warnings

* Replace '...' with '…' where necessary
* Up maxSdk in Testprojects
* Ignore one more category of lint issues in ABS
* Remove debuggable flag from Manifests
* Reorder tags in Manifests according to lint
* Give some strings a more appropriate name
* Delete unused strings
* Set strings in strings-global.xml to translatable=false
Merge pull request #159 from Catrobat/ALittleLintCleanup

Remove some lint warnings
Merge branch 'master' into ControlBrickLayoutRefactoring
refactoring of LoopBrickTest

* intention of tests is still the same
* indices had to be adapted
* bricks got larger, and dragging couldn't be performed in one step
if list was too longer than the screen