Stevedore is now part of the OpenStack Oslo program and is managed through OpenStack's infrastructure system:

Git: http://git.openstack.org/cgit/openstack/stevedore/

Documentation: http://docs.openstack.org/developer/stevedore/

Bug tracker: https://launchpad.net/python-stevedore

Contributing: http://git.openstack.org/cgit/openstack/stevedore/tree/CONTRIBUTING.rst