gulp-test
使用gulp压缩CSS, JS , 图片
并且使用热加载(watch模式)以及CSS自动添加前缀.
参考文档：
1.http://www.jianshu.com/p/fbf9871dc47a 2.https://markpop.github.io/2014/09/17/Gulp%E5%85%A5%E9%97%A8%E6%95%99%E7%A8%8B/
1.http://www.jianshu.com/p/fbf9871dc47a 2.https://markpop.github.io/2014/09/17/Gulp%E5%85%A5%E9%97%A8%E6%95%99%E7%A8%8B/