Trying to allow circus-web to run under Python 3.0

See the following issue for more context: https://github.com/mozilla-services/circus-web/issues/43

torandio2 is no longer maintained, so circus-web has been ported to SockJs.Torando.

All the tests seem to fail without any of my changes, see https://github.com/mozilla-services/circus-web/issues/44 thus I can't test if this change actually works or not...