changed brick selection in BrickCategoriesTableViewController from modal to push
fixed crash at addObject to tableview, toolbar refactoring
added drag&drop to script view (in progress)
gesture handler for SoundsTVC
fix toolbar problems
BrickManager for BLL
fixes #129
helpers for Program class
minor changes to baseVCs
outsource ui-messages
new ui helpers
fixes #122
fix loading program
Merge branch 'development' of gh:Catrobat/Catty into ide

* 'development' of gh:Catrobat/Catty:
  fixed analyze warning (changed spaces to 4 again)
  Fixed analyze error in FormulaElemente
  Fixed Bug in Catt.xcscheme
update continue cell
tests for program class
fix for ProgramTVC ui tests
split up ProgramTVC ui-tests
determine duration of a sound
enhancements for renaming objects