[config, i18n] Create default translation mechanism for all supported languages.
Mostly usefull in test where language are never initialised from .po files.
#! /bin/sh -e#if [ "$1" = remove -o "$1" = upgrade ]; then if which install-docs >/dev/null 2>&1; then install-docs -r cubicweb-doc fifi#DEBHELPER#exit 0