fix: build for ssr package

package.json

@@ -35,6 +35,7 @@
     "zoom-image": "^0.1.4"
   },
   "devDependencies": {
+    "babel-preset-es2015": "^6.24.1",
     "cssnano": "^3.10.0",
     "eslint": "^3.18.0",
     "eslint-config-vue": "^2.0.2",
@@ -43,7 +44,7 @@
     "postcss": "^5.2.16",
     "postcss-salad": "^1.0.8",
     "rollup": "^0.41.6",
-    "rollup-plugin-async": "^1.2.0",
+    "rollup-plugin-babel": "^2.7.1",
     "rollup-plugin-buble": "^0.15.0",
     "rollup-plugin-commonjs": "^8.0.2",
     "rollup-plugin-node-resolve": "^2.0.0",