view changes
removed validations from comment model
set question's rating on homepage as static
added factories, model specs
Partial bootstrap editor
Merge branch 'master' into backbone

Conflicts:
	Gemfile
	Gemfile.lock
	app/assets/javascripts/application.js
	app/controllers/questions_controller.rb
	app/views/questions/_form.html.haml
	app/views/questions/edit.html.haml
	app/views/questions/new.html.haml