ignore .ruby-version
prepare and clean_up spec_helper and rails_helper
install factory_girl_rails
modify deplecated option
add model 'User'

* add model, spec and factory
* add validation for User#name
add validation for User#email

* it validated by devise
add validation for User#nick
add validation for User#member_number
improve to specify options for generator
remove turbolinks
add controller and view home#index
add route setting for devise
install normalize.css

* http://necolas.github.io/normalize.css/
implement sign_up form

* add fields to sign up form
* add permited columns for devise