* replace componentWillReceiveProps by componentDidUpdate
* replace props.url by withRouter HOC
* fix deprecated `props.url` in with-shallow-routing example
* Simplify route info handling.
* Add basic resolve=false support.
* Make sure to render getInitialProps always if it's the first render.
* Change resolve=false to shallow routing.
* Add test cases for shallow routing.
* Update README for shallow routing docs.
* Update docs.
* Update docs.
* Update docs.
