message: Fix issue with react-router package version conflict
  There was an issue as we do not explicitly set the react-router version, I was getting 4.3.1 which has an issue with the newer react-router-config & react-router-dom packages resulting in:
  "reactRouter.Router.computeRootMatch is not a function"
diff: "react-hot-loader": "^4.3.12",
  "react-loadable": "^5.5.0",
  "react-redux": "^5.1.1",
  - "react-router-config": "^4.4.0-beta.5",
  - "react-router-dom": "^4.4.0-beta.5",
  + "react-router": "^4.4.0-beta.6",
  + "react-router-config": "^4.4.0-beta.6",
  + "react-router-dom": "^4.4.0-beta.6",
  "redux": "^4.0.1",
  "redux-thunk": "^2.3.0",
  "serialize-javascript": "^1.5.0",
  