design changes at ForumViewController
new Buttons at Forum
slidingMenu changes(darker,new slideeffect,bugfixes)
small slide menu changes(bounce effect)
group all graphics files in project
adjust alignment of placeholders
no disclosure indicator in ObjectSoundsTVC
refactoring
base script cell view, added image assets catalog
updated brick titles + reformat define-consts
Merge branch 'ide' of gh:Catrobat/Catty into development

* 'ide' of gh:Catrobat/Catty:
  base script cell view, added image assets catalog
  refactoring
colored category brick views
some test changes
fixes #53

toolbar translucent, pref/next button are enabled/disabled
fixes touch issue

no more crash when tapping the background, now able to detect
transparent parts/pixels of an object
improvements loudness handler
convert UITableVC to UICollectionVC
Merge branch 'development' of gh:Catrobat/Catty into ide

* 'development' of gh:Catrobat/Catty:
  improvements loudness handler
  fixes touch issue
  fixes #53
  some test changes
restructured hierarchy of IDE classes
fix for last commit