参考URL http://ueblog.natural-wave.com/2007/11/10/ruby-on-rails%E3%81%A7%E3%83%95%E3%82%A9%E3%83%BC%E3%83%A0%E3%82%92%E4%BD%9C%E6%88%90%E3%81%99%E3%82%8B5%E3%83%A1%E3%83%BC%E3%83%AB%E9%80%81%E4%BF%A1/ enbroments.rb Rails::Initializer.run d…