render() {
    return (
      <div>
        {React.Children.toArray(this.props.children)}
      </div>
    );
  }
App.react.js

This component is the skeleton around the actual pages, and should only
contain code that should be seen on all pages. (e.g. navigation bar)

NOTE: while this component should technically be a stateless functional
component (SFC), hot reloading does not currently support SFCs. If hot
reloading is not a necessity for you then you can refactor it and remove
the linting exception.