work around the pypy bug
work around the pypy bug

This just restricts the setuptools to <3.2

Change-Id: Ide6ffddd129640429d6c0a8536656c7a8151e197

stackforge/python-solumclient,stackforge/python-solumclient,rackerlabs/arborlabs_client,ed-/python-solumclient,ed-/python-solumclient,rackerlabs/arborlabs_client,openstack/python-solumclient