Refactor to follow new nevow APIs: depend on a new enough version of nevow.
Refactor to follow new nevow APIs: depend on a new enough version of nevow.


git-svn-id: 554337001ebd49d78cdf0a90d762fa547a80d337@67 373aa48d-36e5-0310-bb30-ae74d9883905

antong/ldaptor,antong/ldaptor