Update Kohana to 3.1.3.1

includes/kohana/application/classes/controller/welcome.php

@@ -0,0 +1,10 @@
+<?php defined('SYSPATH') or die('No direct script access.');
+
+class Controller_Welcome extends Controller {
+
+	public function action_index()
+	{
+		$this->response->body('hello, world!');
+	}
+
+} // End Welcome