Removed multiple build commands for images.
Removed CCLightNode-Info.plist from copy bundle phase.
Removed a dangling reference to a plist file which was just a template and no longer needed.
Code signing activated for debug and release builds in XCode.
Code signing run script phase added again.
Code signing Spritebuilder.entitlements not used for Testing configuration, otherwise AppCode won't find the tests.
Removed several warnings.
Merge pull request #1239 from NickyWeber/refactor/ProjectTidyUpAndSandboxing

Refactor/project tidy up and sandboxing