環境構築参考 http://qiita.com/hirokishirai/items/e38b29a7075459ff6032 MacでRuby on railsの環境を構築しようとした時のメモ ・Warning: /usr/local/etc isn't writable. ・Warning: /usr/local/share/python is not needed in PATH. ・Warning: Unbrewe…