rails-api new -T; remove config/initializers/secret_token.rb
set TZ to Sapporo
remove spring
cleaning-up Gemfile
install jbuilder and thin
install debugging gems
install testing gems
検索除け
remove README.rdoc (generated by rails-api)
Merge pull request #1 from iTakeshi/dev_env

開発環境構築
install sorcery (from forked repo)
rails g sorcery:install user_activation user_approval reset_password activity_logging
run migration
configure sorcery
cleanup routes.rb
add original fields to users table
create graduation_years table and define relationship with users
insert model annotation
install kawaii_validation
add validations to User