zentao/extension/ipd/group/ext/lang/en/ipd.php

<?php
$lang->resource->roadmap = new stdclass();
$lang->resource->roadmap->browse = 'browse';
$lang->resource->roadmap->view   = 'view';

$lang->resource->projectstory->track = 'trackAction';

include dirname(dirname(__FILE__)) . '/resource.php';