chore(package): update react-router-config to version 4.4.0-beta.1

Closes #42

Author: greenkeeper[bot]

package.json

@@ -98,7 +98,7 @@
     "react": "^16.0.0",
     "react-dom": "^16.0.0",
     "react-redux": "^5.0.6",
-    "react-router-config": "^1.0.0-beta.4",
+    "react-router-config": "^4.4.0-beta.1",
     "react-router-dom": "^4.2.2",
     "react-router-fetch": "^2.2.0",
     "redux": "^3.7.2",