[web] Fix handling of some http headers
The generator takes as argument a list of raw string values, and is
supposed to return the parsed version. Calling str on that list makes
no sense.
# -*- 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"""