Base demo
http://www.cnblogs.com/wj204/p/6031435.html
http://www.cnblogs.com/lhweb15/p/5660609.html
http://www.cnblogs.com/wj204/p/6094796.html
http://blog.csdn.net/zhangchao19890805/article/details/53150882
new webpack.LoaderOptionsPlugin({
//custom prop
})