Initial commit
Adds initial modeling for reviews
Adds list and create reviews
Adds translations and jquery plugin for stars
Adds avg_rating to products and presence validation to reviews
Improves Review model
Adds review feedbacks
Shows rating summary for products
Adds user uniqueness validation
Adds authorization
Shows product average rating in the catalog
Merge branch 'master' of github.com:14bis/14rank

Conflicts:
	.gitignore
	README.md