Allow links in posting and private messages despite the disabled setting in acp Allow links in posts/private messages.

For such reason overwrite $url_status in posting.php and ucp_pm_compose.php like this

$url_status = ($config['allow_post_links'] || $auth->acl_get('a_') || $auth->acl_get('m_'));

Also we need to replace

$config['allow_post_links']

on

$url_status 

Because we initialize $url_status with

$url_status = ($config['allow_post_links'] || $auth->acl_get('a_') || $auth->acl_get('m_'));

Also the message ALLOW_POST_LINKS_EXPLAIN should be overwriten in appropriate way in board.php