Remove NPM and iOSSim install on Travis." Update Travis to Xcode9, test on  iPhone X simulators
Remove NPM and iOSSim install on Travis."
Update Travis to Xcode9, test on  iPhone X simulators

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