[config, i18n] Create default translation mechanism for all supported languages.
Mostly usefull in test where language are never initialised from .po files.
This is a reapplication of changeset 1a423eaee782 backouted by b9ffecd0316a with
an additional fix not to break i18nxxx commands
.. -*- 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