added support for the url generator and url matcher in the security HttpUtils class

src/Silex/Provider/SecurityServiceProvider.php

@@ -274,7 +274,7 @@ class SecurityServiceProvider implements ServiceProviderInterface
         });
 
         $app['security.http_utils'] = $app->share(function () use ($app) {
-            return new HttpUtils();
+            return new HttpUtils(isset($app['url_generator']) ? $app['url_generator'] : null, $app['url_matcher']);
         });
 
         $app['security.last_error'] = $app->protect(function (Request $request) {