[ticket/10411] Throw exceptions instead of using trigger_error()

PHPBB3-10411

phpBB/includes/groupposition/exception.php

@@ -0,0 +1,23 @@
+<?php
+/**
+*
+* @package groupposition
+* @copyright (c) 2013 phpBB Group
+* @license http://opensource.org/licenses/gpl-license.php GNU Public License v2
+*
+*/
+
+/**
+* @ignore
+*/
+if (!defined('IN_PHPBB'))
+{
+	exit;
+}
+
+/**
+* @package groupposition
+*/
+class phpbb_groupposition_exception extends \Exception
+{
+}