chore(package): update rollup to version 0.62.0 (#2400)

package.json

@@ -68,7 +68,7 @@
     "node-sass": "^4.8.3",
     "node-static": "^0.7.9",
     "nodemon": "^1.11.0",
-    "rollup": "^0.61.0",
+    "rollup": "^0.62.0",
     "rollup-plugin-babel": "^3.0.3",
     "uglify-js": "^3.3.17",
     "watchify": "^3.11.0"