Static Site Generation with React and Webpack references non-existent RouteHandler

[hwinkler]

Since 1.0 react-router has removed RouteHandler:

https://github.com/reactjs/react-router/blob/master/upgrade-guides/v1.0.0.md#routehandler

[jxnblk]

Thanks! This article needs a few updates if you're using the latest version of all these packages.