Improved static code analysis

Actually, renamed system wrapper class Twig to Kotwig.

~dev_rating/modules/kotwig/classes/Kohana/Twig.php

@@ -50,7 +50,7 @@ class Kohana_Twig extends View {
 	 */
 	public static function factory($file = NULL, array $data = NULL)
 	{
-		return new Twig($file, $data);
+		return new Kotwig($file, $data);
 	}
 
 	/**

~dev_rating/modules/kotwig/classes/Twig.php → ~dev_rating/modules/kotwig/classes/Kotwig.php

 <?php defined('SYSPATH') or die('No direct script access.');
 
-class Twig extends Kohana_Twig {}
+class Kotwig extends Kohana_Twig {}

~dev_rating/modules/kotwig/init.php

 <?php defined('SYSPATH') or die('No direct script access.');
 
 define('TWIGPATH', rtrim(dirname(__FILE__), DIRECTORY_SEPARATOR).DIRECTORY_SEPARATOR);
-Twig::init();
+Kotwig::init();

~dev_rating/modules/mpdf/classes/View/MPDF/Core.php

@@ -9,7 +9,7 @@
  * @copyright  (c) 2009 Woody Gilk
  * @license    MIT
  */
-abstract class View_MPDF_Core extends Twig {
+abstract class View_MPDF_Core extends Kotwig {
 
 	protected $mpdf = NULL;
 	protected $view_file = NULL;