add facade for filter::register.

application/routes.php

@@ -91,22 +91,22 @@ Event::listen('500', function()
 |
 */
 
-Filter::register('before', function()
+Route::filter('before', function()
 {
 	// Do stuff before every request to your application...
 });
 
-Filter::register('after', function()
+Route::filter('after', function()
 {
 	// Do stuff after every request to your application...
 });
 
-Filter::register('csrf', function()
+Route::filter('csrf', function()
 {
 	if (Request::forged()) return Response::error('500');
 });
 
-Filter::register('auth', function()
+Route::filter('auth', function()
 {
 	if (Auth::guest()) return Redirect::to('login');
 });

laravel/routing/route.php

@@ -337,4 +337,16 @@ class Route {
 		Router::secure($method, $route, $action);
 	}
 
+	/**
+	 * Register a route filter.
+	 *
+	 * @param  string   $name
+	 * @param  Closure  $callback
+	 * @return void
+	 */
+	public static function filter($name, Closure $callback)
+	{
+		Filter::register($name, $callback);
+	}
+
 }