[web] stop accepting the magic __message form parameter
This has been deprecated for a while, and replaced by _cwmsgid, which
doesn't allow arbitrary content.
.. -*- coding: utf-8 -*-
Server Architecture
-------------------
.. image:: images/server-class-diagram.png
`Diagramme ArgoUML`_
[FIXME]
Make a downloadable source of zargo file.
.. _`Diagramme ArgoUML`: cubicweb.zargo