Adding JavaFoundation.framework under Link Binary with Libraries for Android target
XCode project tidied up, tests running in AppCode again.
Added CCLightNode-Prefix.pch file as every other node had that one themselves.
Added xcscheme for AppCode tests. AppCode needs a separate scheme. Does not interfere with XCode.
Merge pull request #1238 from NickyWeber/bugfix/TestsAppCode

XCode project tidied up, tests running in AppCode again.
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