[^] ui fixes: error messages, user name dummy method, prompt in category select
[^] swqp dashboard#index blocks
[+] courses has_and_belongs_to_many menus
[^] dependents in associated models
update simple_form gem
[^] magic encoding
[^] menus CRUD
Merge remote-tracking branch 'refs/remotes/origin/master'

Conflicts:
	app/assets/stylesheets/application.css