PARAM_URL/PARAM_LOCALURL does not accept http://localhost/ or other hosts on intranets

Judging from inline comments this is a know issue:

// PARAM_URL requires a genuine TLD (I think) This breaks my testing
$temp_wwwroot = clean_param($form->wwwroot, PARAM_URL);
if ($temp_wwwroot !== $form->wwwroot)

{ trigger_error("We now parse the wwwroot with PARAM_URL. Your URL will need to have a valid TLD, etc."); error(get_string("invalidurl", 'mnet'),'peers.php'); exit; }

unset($temp_wwwroot);

I do not think that we need to clean the url that is submitted by amin, because mnet should be IMHO usable in intranets that are using compaly.local or company.lan domains too.