dismiss keyboard when touching outside
fixes #185, improves #154
fixes#182
Merge branch 'development' of gh:Catrobat/Catty into issue#182

* 'development' of gh:Catrobat/Catty:
  indicator stops loading in most downloaded tab
  fixes x-acceleration test
  accidentally removed a line in SoundsTVC
Merge branch 'issue#185' of gh:Catrobat/Catty into issue#182

* 'issue#185' of gh:Catrobat/Catty:
  fixes #185, improves #154
  dismiss keyboard when touching outside