Restored code for ensuring script works when called from outside of directory
Restored code for ensuring script works when called from outside of directory

ncoelle/Slim-iOS-TestRunner,paulstringer/OCSlimProject,paulstringer/OCSlimProject,ncoelle/Slim-iOS-TestRunner,ncoelle/Slim-iOS-TestRunner,paulstringer/OCSlimProject,ncoelle/Slim-iOS-TestRunner,paulstringer/OCSlimProject