"Moderators" string should be translatable

Just a little bug report (and fix)

forum_access.module, line 208:

$form['forum_access']['acl'] = acl_edit_form($acl_id, 'Moderators');

should be replaced with:

$form['forum_access']['acl'] = acl_edit_form($acl_id, t('Moderators'));

Thanks for your work, this module is really useful ;)