Updated lti rake task to output key and secret
Updated lti rake task to output key and secret

atomicjolt/react_starter_app,atomicjolt/react_rails_starter_app,atomicjolt/react_starter_app,atomicjolt/react_starter_app,atomicjolt/lti_starter_app,atomicjolt/react_rails_starter_app,atomicjolt/adhesion,atomicjolt/react_rails_starter_app,atomicjolt/lti_starter_app,atomicjolt/lti_starter_app,atomicjolt/lti_starter_app,atomicjolt/adhesion,atomicjolt/adhesion,atomicjolt/adhesion,atomicjolt/react_rails_starter_app,atomicjolt/react_starter_app