[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
Schema of the data
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First take a look at the data schema_ then try to remember that you are browsing
through a heap of data by applying stylesheets to the results of queries. This
site is not a content management system with items placed in folders. It is an
interface to a database which applies a view to retreived data.
.. _schema: schema