[RBL-04] Adding service for getting all restaurants
[RBL-04] Adding error funcion for services. Now displays error.html
[RBL-04] Adding controller, service for adding a new restaurant (save)
[RBL-04] Adding controller, service for displaying all comments for a restaurant
[RBL-04] Adding controller, service for submitting comment for a restaurant
[RBL-04] Make template for more details.
[RBL-04] Changed the rating for progress bar in home page.