Merge branch 'master' of https://github.com/goldrush/goldrush
Merge branch 'master' of https://github.com/goldrush/goldrush
配信メール詳細画面(delivery_mail/show)を実装
Merge branch 'master' of https://github.com/goldrush/goldrush
Merge pull request #22 from nakano-m/master

配信メール詳細画面を実装