chore(package): update jsdom to version 15.1.1

Closes #64

Author: greenkeeper[bot]

package.json

@@ -42,7 +42,7 @@
     "eslint-plugin-react": "^7.6.0",
     "flow-bin": "^0.81.0",
     "jest": "^23.4.1",
-    "jsdom": "^13.0.0",
+    "jsdom": "^15.1.1",
     "node-sass-chokidar": "^1.3.3",
     "raf": "^3.4.0"
   },