Merge pull request #22 from joelmukuthu/greenkeeper/jsdom-13.0.0

Update jsdom to the latest version 🚀

Author: joelmukuthu

package.json

@@ -32,7 +32,7 @@
     "grunt-contrib-clean": "^2.0.0",
     "grunt-contrib-uglify": "^3.0.0",
     "grunt-release-it": "^1.0.1",
-    "jsdom": "^12.0.0",
+    "jsdom": "^13.0.0",
     "jsdom-global": "^3.0.2",
     "load-grunt-tasks": "^4.0.0",
     "mocha": "^5.0.0",