create models and associations.
create class rating and create association
create method crete_rating

Signed-off-by: Murilo Duarte <muriloduartegoncalves@hotmail.com>
Signed-off-by: Karine Valença <valenca.karine@gmail.com>
Creating Comment's action Create and fixing associations.
create models and associations.
Creating Comment's action Create and fixing associations.
test medics created
added medic schedule in his profile
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
Fixing comment's action and applaind on view.
Signed-off-by: Vinicius Bandeira <bandeiravinicius0@live.com>
Signed-off-by: Lucas Pereira <lucasgpereira.10@gmail.com>
Solving merge conflicts.
Inserting date atribute in Comment and creating 'create_relevance' action.
Merge pull request #21 from KarineValenca/development

Create medics rating
Merge remote-tracking branch 'sickert/development' into development

Conflicts:
	app/views/medics/profile.html.erb
Correct rating action
Create action average
Limiting characters on comment and creating disabled text field, fixed #4