Extensibility: discussion list params

Also give the root controller the name of the current route so they can
easily route back to it

js/lib/utils/map-routes.js

@@ -1,6 +1,7 @@
 export default function mapRoutes(routes) {
   var map = {};
   for (var r in routes) {
+    routes[r][1].props.routeName = r;
     map[routes[r][0]] = routes[r][1];
   }
   return map;