Log Message:
Update to 1.13.

1.13 (2007-03-28)
-----------------
* New mailgraph homepage URL: http://mailgraph.schweikert.ch
* XHTML 1.0 strict output (Yllar Pajus)
* add releative jump points (Hugo van der Kooij)
* add commented-out code for clamassassin (Adrian von Bidder)
* add support for Amavisd-new >= 2.4 (Christoph Kessinger)
* add support for Borderware Mxtreme (Postfix variant, Johan Nilsson)
* add support for the ClamAV SpamAssassin plugin (Thomas Brown)
* add support for MxTreme mail gateway (Guido)
* update support for Kaspersky AntiVirus (Igor Moskovko)
* update support for AntiVir (Wolfram Schlich)
* update support for drweb (Lev)
* update support for MailScanner (Simon Hartl, Pierre-Yves Bonnetain)
* update support for AntiVir (Frank Urban)
* fix DST-switch timewarp in autumn (Parse::Syslog 1.09)
* fix hidden rejected line behind are items (Axel Beckert)
* fix virbl DNS name (Eddy Beliveau)