diff -r 5e7a0fedabdf -r 877f952ae2bd web/lib/Zend/Controller/Router/Rewrite.php
--- a/web/lib/Zend/Controller/Router/Rewrite.php	Thu Mar 21 17:31:31 2013 +0100
+++ b/web/lib/Zend/Controller/Router/Rewrite.php	Thu Mar 21 19:50:53 2013 +0100
@@ -15,8 +15,8 @@
  * @category   Zend
  * @package    Zend_Controller
  * @subpackage Router
- * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
- * @version    $Id: Rewrite.php 23362 2010-11-18 17:22:41Z bittarman $
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
+ * @version    $Id: Rewrite.php 24593 2012-01-05 20:35:02Z matthew $
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 
@@ -31,7 +31,7 @@
  *
  * @package    Zend_Controller
  * @subpackage Router
- * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @copyright  Copyright (c) 2005-2012 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @see        http://manuals.rubyonrails.com/read/chapter/65
  */
@@ -381,7 +381,7 @@
 
         // Find the matching route
         $routeMatched = false;
-        
+
         foreach (array_reverse($this->_routes, true) as $name => $route) {
             // TODO: Should be an interface method. Hack for 1.0 BC
             if (method_exists($route, 'isAbstract') && $route->isAbstract()) {
@@ -450,6 +450,11 @@
      */
     public function assemble($userParams, $name = null, $reset = false, $encode = true)
     {
+        if (!is_array($userParams)) {
+            require_once 'Zend/Controller/Router/Exception.php';
+            throw new Zend_Controller_Router_Exception('userParams must be an array');
+        }
+        
         if ($name == null) {
             try {
                 $name = $this->getCurrentRouteName();
@@ -458,14 +463,14 @@
             }
         }
 
-        // Use UNION (+) in order to preserve numeric keys 
+        // Use UNION (+) in order to preserve numeric keys
         $params = $userParams + $this->_globalParams;
 
         $route = $this->getRoute($name);
         $url   = $route->assemble($params, $reset, $encode);
 
         if (!preg_match('|^[a-z]+://|', $url)) {
-            $url = rtrim($this->getFrontController()->getBaseUrl(), '/') . '/' . $url;
+            $url = rtrim($this->getFrontController()->getBaseUrl(), self::URI_DELIMITER) . self::URI_DELIMITER . $url;
         }
 
         return $url;