From: Fabian Keil 
$Id: developer-manual.sgml,v 2.58 2014/05/26
-      10:48:39 fabiankeil Exp $
$Id: developer-manual.sgml,v 2.59 2016/01/17
+      14:32:18 fabiankeil Exp $
$Id: faq.sgml,v 2.109 2015/08/12 10:40:42 fabiankeil +
$Id: faq.sgml,v 2.110 2016/01/17 14:32:19 fabiankeil
       Exp $
$Id: user-manual.sgml,v 2.197 2016/01/16 12:30:58 +
$Id: user-manual.sgml,v 2.198 2016/01/17 14:32:19
       fabiankeil Exp $