Merge pull request #380 from mjeanroy/greenkeeper/rollup-1.32.0

Update rollup to the latest version 🚀

Author: mjeanroy

package.json

@@ -43,7 +43,7 @@
     "gulp-jasmine": "4.0.0",
     "jasmine-core": "3.5.0",
     "rimraf": "3.0.2",
-    "rollup": "1.31.1",
+    "rollup": "1.32.0",
     "tmp": "0.1.0"
   }
 }