Test and fix "pickleability" of Binary objects
which has been recently broken while some cubes rely on this (eg fastimport).
Do some licensing/pep8 cleanup along the way.
Closes #13385274
.. -*- coding: utf-8 -*-
Dernières modifications
-----------------------
* la table des `derniers changements`_ fournit un exemple d'utilisation de RQL
pour récupérer les derniers changements ayant eu lieu sur ce site.
.. _`derniers changements`: ../view?rql=Any+M%2CX+WHERE+X+modification_date+M+ORDERBY+M+DESC+LIMIT+30