tests pass
added images to restaurants show
added grade pending for grade == nil
Merge pull request #7 from bsusensjackson/restaurant_view_grades

Restaurant view grades
Merge branch 'master' of https://github.com/mendoncakr/GradePending2.0 into yelp
adding VCR gem for external API testing
writing model testing for Yelp API along. Additional spec files are from VCR gem which save and record the response from HTTP interactions