bump v0.1.2

Author: airyland

build/nano-css.js

@@ -0,0 +1,8 @@
+const cssnano = require('cssnano')
+const fs = require('fs')
+const path = require('path')
+
+const code = fs.readFileSync(path.resolve(__dirname, '../dist/vux.css'))
+cssnano.process(code.toString(), {zindex: false}).then(function (result) {
+  fs.writeFileSync(path.resolve(__dirname, '../dist/vux.css'), result.css)
+})