修改顶部导航，显示当前功能
修改配置文件application.rb，避免出现一条过期信息

[deprecated] I18n.enforce_available_locales will default to true in the
future. If you really want to skip validation of your locale you can
set I18n.enforce_available_locales = false to avoid this message.
添加select2到项目中
为出入库记录添加验证
添加will_paginate分页组件
添加README，添加codeclimate的代码评分
添加angularjs到项目中