Fix unknown props issues with DOM components

Author: taion

docs/Glossary.md

@@ -204,6 +204,8 @@ The term *route component* refers to a [component](#component) that is directly
   - `route` – The [route](#route) that declared this component
   - `routeParams` – A subset of the [params](#params) that were specified in the route's [`path`](#routepattern)
 
+Route components should generally be component classes rather than strings. This will avoid potential issues with passing the injected props above to DOM components.
+
 ## RouteConfig
 
 ```js

examples/huge-apps/app.js

@@ -1,11 +1,10 @@
-/*eslint-disable no-unused-vars */
 import React from 'react'
 import { render } from 'react-dom'
 import { Router, browserHistory } from 'react-router'
-import stubbedCourses from './stubs/COURSES'
+
+import './stubs/COURSES'
 
 const rootRoute = {
-  component: 'div',
   childRoutes: [ {
     path: '/',
     component: require('./components/App'),