Delete movie_viewing_history files
Modify movie.rb, movie_spec.rb, and movies controller to accomodate replacement of movie_viewing_history with visited_movie
modify user.rb and user_spec.rb to accomodate for replacement of movie_viewing_history with visited_movie
modify dashboards controller to accomodate for replacement of movie_viewing_history with visited_movie
Modify visited_movie.rb and create visited_movie_spec.rb
modify user dashboard view to accomodate for replacement of movie_viewing_history with visited_movie
Fix indentation in movie index view
Create and run migrations to drop movie_viewing_history table and add movie_id to visited_movies table
Create feature spec for 'user can view last 3 movies visited' user story