Make load_module() return existing module if present in sys.modules
Otherwise the reload() builtin will not work correctly:
https://www.python.org/dev/peps/pep-0302/#specification-part-1-the-importer-protocol
#!/bin/sh -e
if [ "$1" = "purge" ] ; then
rm -rf /etc/cubicweb.d/
rm -rf /var/log/cubicweb/
rm -rf /var/lib/cubicweb/
fi
#DEBHELPER#
exit 0