[devtools] change the way we start/stop postgresql Instead of having the test db handler start a cluster on demand, use the test module's setUp/tearDown callbacks to do it. This allows to have one data directory (and thus cluster) per test module, allowing different test modules to run in parallel, each using its own database cluster whose path is based on the test module.

.. -*- 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