[repo] make extid2eid work with either a session or a connection
The only place it should matter is for restoring pending_operations in
case of failure. Which is not exercised by the test suite. Here be
dragons.
.. -*- 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