allow underscore in ALIAS name (Fixes: #3866)

Florian Schaal

2016-04-30 8beb039f0b7d23b03f7963c3a56c8dde65af3b6b

 server/lib/classes/system.inc.php

@@ -44,7 +44,7 @@
    */


   public function system(){
   public function __construct(){
      //global $go_info;
      //$this->server_id = $go_info['isp']['server_id'];
      //$this->server_conf = $go_info['isp']['server_conf'];