fix for tiny patch (commit: 5fbf49a)

Signed-off-by: Ralph Samer <ralph.samer@student.tugraz.at>
Merge branch 'spritekit' of gh:Catrobat/Catty into spritekit

* 'spritekit' of gh:Catrobat/Catty:
  fixes #93 and BrightnessBrick changes
  Cleanup Of some Tests
  Deleted leftover merge files
  Updated Readme.md
  Fixed Code Signing setup for continuous integration
  Code Signing settings added..
  Removed CattyTest.xcscheme from shared schemes
  Shared Catty.xcscheme for continuous integration
  Bot