chore(package): update react-router-dom to version 5.1.1

Closes #86

Author: greenkeeper[bot]

package.json

@@ -98,7 +98,7 @@
     "react-hot-loader": "^4.0.0",
     "react-loadable": "^5.3.1",
     "react-redux": "^5.0.7",
-    "react-router-dom": "^4.2.2",
+    "react-router-dom": "^5.1.1",
     "react-test-renderer": "^16.3.0",
     "redux": "^4.0.0",
     "request": "^2.85.0",