Merge pull request #1746 from michalkot/master.

Allow empty routes.

backbone.js

@@ -947,7 +947,7 @@
     _bindRoutes: function() {
       if (!this.routes) return;
       var route, routes = _.keys(this.routes);
-      while (typeof (route = routes.pop()) !== 'undefined') {
+      while ((route = routes.pop()) != null) {
         var name = this.routes[route];
         this.route(route, name, this[name]);
       }

test/router.js

@@ -481,4 +481,15 @@ $(document).ready(function() {
     });
   });
 
+  test("#1746 - Router allows empty route.", 1, function() {
+    var Router = Backbone.Router.extend({
+      routes: {'': 'empty'},
+      empty: function(){},
+      route: function(route){
+        strictEqual(route, '');
+      }
+    });
+    new Router;
+  });
+
 });