[web] fix AbstractSessionManager.clean_sessions (closes #5757240)
sessions were not closed if "last_usage_time = session.cnx.check()" actually
raises an AtributeError.
# -*- 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 views/forms/actions/components for web ui"""