Added __getstate__ and __setstate__ to enable pickling
Added __getstate__ and __setstate__ to enable pickling

Khan/python-phabricator,disqus/python-phabricator,scast/python-phabricator,folsom-labs/python-phabricator,jamesmeador/python-phabricator,disqus/python-phabricator,MediaMiser/python-phabricator