引当状態の実現（流通ステータスのみ）
簡易引当機能作成：エンジンステータスも変更されるように変更
befor pull
Merge branch 'master' of https://github.com/yada-ITA/r2
簡易引当、簡易出荷機能の実現
Merge pull request #23 from yada-ITA/newshipping

簡易引当、簡易出荷の実装
Merge branch 'master' of https://github.com/yada-ITA/r2
just befor sprint2 review
just befor sprint2 review
「受注」の引当て～出荷における「整備」との連動
just befor sprint2 review
Merge pull request #24 from sankai/master

「受注」の引当て～出荷における「整備」との連動
Setup my development environment
Add rails-erd to generate ER-diagram from models
Add integration test for signing up/in/out flows
Remove useless empty line
Rename new user's name colliding with :test_tarou in fixtures
Replace hand-coded paths with route names
Add more test scenarios of signing flows
Add scenario descriptions in Japanese