chore(package): update rollup to version 0.53.1

Author: greenkeeper[bot]

package.json

@@ -97,7 +97,7 @@
     "karma-webpack": "2.0.9",
     "lodash": "^4.5.1",
     "replace-in-file": "3.1.0",
-    "rollup": "0.53.0",
+    "rollup": "0.53.1",
     "rollup-plugin-node-resolve": "3.0.0",
     "rollup-plugin-sourcemaps": "^0.4.1",
     "rollup-plugin-uglify": "2.0.1",