0.5.1: Fix middleware[] option throwing an exception in Express 4

Author: developit

package.json

@@ -1,6 +1,6 @@
 {
   "name": "resource-router-middleware",
-  "version": "0.5.0",
+  "version": "0.5.1",
   "description": "Express REST resources as middleware",
   "main": "resource-router-middleware.js",
   "scripts": {

resource-router-middleware.js

@@ -7,7 +7,7 @@ module.exports = function ResourceRouter(route) {
 	var router = Router(),
 		key, fn, url;
 
-	[].concat(route.middleware || []).forEach(router.use.bind(router));
+	if (route.middleware) router.use(route.middleware);
 
 	if (route.load) {
 		router.param(route.id, function(req, res, next, id) {