Blank authentication_controller file deleted.
VideoDecorator spec tests and controller changes to use VideoDecorator.
VideoDecorator to test average rating and to assert review delegation.
Update to shoulda-matchers to 2.6.1 to use the delegate_to method only available in this version. Did not work as expected so manual test created instead.
Usage of average_rating in controllers changed to use decorator rather then method inherited from ApplicationController.