es6 cleanup
es6 cleanup

html-next/vertical-collection,runspired/smoke-and-mirrors,ssendev/smoke-and-mirrors,runspired/smoke-and-mirrors,runspired/ember-radar,ssendev/smoke-and-mirrors,aquamme/smoke-and-mirrors,aquamme/smoke-and-mirrors,html-next/vertical-collection,html-next/vertical-collection,runspired/ember-radar