Update Kohana to 3.1.3.1

includes/kohana/modules/orm/classes/model/auth/role.php

@@ -0,0 +1,29 @@
+<?php defined('SYSPATH') or die('No direct access allowed.');
+/**
+ * Default auth role
+ *
+ * @package    Kohana/Auth
+ * @author     Kohana Team
+ * @copyright  (c) 2007-2009 Kohana Team
+ * @license    http://kohanaphp.com/license.html
+ */
+class Model_Auth_Role extends ORM {
+
+	// Relationships
+	protected $_has_many = array('users' => array('through' => 'roles_users'));
+
+	public function rules()
+	{
+		return array(
+			'name' => array(
+				array('not_empty'),
+				array('min_length', array(':value', 4)),
+				array('max_length', array(':value', 32)),
+			),
+			'description' => array(
+				array('max_length', array(':value', 255)),
+			)
+		);
+	}
+
+} // End Auth Role Model