some warnings fixed
Fixes #69 ComeToFrontBrick bug and fixes #71

ComeToFrontBricks now works like expected. I also added a test for this
brick. Minor Changes to SetX/YBrick, because of wrong implemantation.

Also fixed the bug concerning the color in SearchViewController
Merge branch 'spritekit' of gh:Catrobat/Catty into ide

* 'spritekit' of gh:Catrobat/Catty:
  Fixes #69 ComeToFrontBrick bug and fixes #71
  some warnings fixed

Conflicts:
	src/Catty.xcodeproj/project.xcworkspace/xcshareddata/Catty.xccheckout
	src/Catty/Scene.m

Signed-off-by: Ralph Samer <ralph.samer@student.tugraz.at>