[session-handler] use session directly to update last usage
We don't really need the WebRequest for that. Not using the WebRequest to access
the cubicweb repository here will allow a delayed set_session.
Related to #2503918
# -*- coding: utf-8 -*-
# copyright %(year)s %(author)s, all rights reserved.
# contact %(author-web-site)s -- mailto:%(author-email)s
#
%(long-license)s
"""%(distname)s schema"""