Integrate Create React App

[erichulburd]

We should push this as a solution that goes beyond Create React App to support Redux libraries and patterns, server side rendering, and integration tests. That way we will always be up to date with all of the latest Create React App goodies.

We should look into using create-react-app in the base app generator.

[erichulburd]

We should also consider how we can dovetail with: https://github.com/zeit/next.js/