Adds #notify_owner tests for comment, and passes that and tags#notify_user test.
Adds read column to notifications, works on notification display logic. Changes root_url to restaurant.index. Creates home button.
Creates rating models, tests, and creation in the create method in the comments controller.
Add rating to comments, changes display of comments to include rating and commenter name.
Cleans up rating tests, makes Restaurant ratings react dynamicly to comment create/destroy methods. Makes restaurant rating between 0 and 7.
Cleans up ratings. Starts filters for signedin/not-signed-in users.
Beings building new notifications.