Update and rename webpack.pord.js to webpack.prod.js

[rongfengliang]

修改 webpack.pord.js 名称为webpack.prod.js 同时添加process.env.NODE_ENV 支持，解决直接引用构建文件因为redux构建提示的错误问题 错误信息如下:

You are currently using minified code outside of NODE_ENV === 'production'. This means that you are running a slower development build of Redux. You can use loose-envify (https://github.com/zertosh/loose-envify) for browserify or DefinePlugin for webpack (http://stackoverflow.com/questions/30030031) to ensure you have the correct code for your production build.

PR 选择列表

• [ ] 修改webpack.pord.js 为 webpack.prod.js
• [ ] 支持process.env.NODE_ENV 模式构建