TODO
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* zeoclient doesn't work
  (mental note: zeo support was inspired by Pascal Peregrina's ZopeHandler)

* functional test suite (where calls to http() really are HTTP calls)

* After Zope 3 startup, it should log to the error.log that it has started up.

* what about logging? Do we still need to provide logging facilities to zope?

* what about mod_rewrite and certain rewrite rules that should be
  carried out one way or another? (e.g. serving certain URL paths locally)

* test with HTTPS