feat: use sfc-compiler instead of rollup

test/unit/get-webpack-conf.js

@@ -16,7 +16,7 @@ const webpackConfig = {
       minimize: true,
       options: {
         babel: {
-          presets: ['es2015'],
+          presets: ['env'],
           plugins: ['transform-runtime', 'transform-vue-jsx']
         },
         vue: {

test/unit/karma.conf.js

@@ -1,7 +1,7 @@
 require('babel-polyfill');
 
 require('babel-core/register')({
-  presets: [require('babel-preset-es2015')]
+  presets: [require('babel-preset-env')]
 });
 
 var webpackConfig = require('./get-webpack-conf');