create class rating and create association
Create medics rating
Merge branch 'development' of https://github.com/muriloduarte/TEM-DF into development

Conflicts:
	app/controllers/medics_controller.rb
	app/models/rating.rb
	db/migrate/20141022141120_create_ratings.rb
	db/schema.rb
update medics rating
Merge pull request #21 from KarineValenca/development

Create medics rating