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The intent of this patch is to update the vmware-nsx-tempest-plugin project so that it's capable of being published to PYPI. To do so the doc requirements are separated from test-requirements, tox.ini is updated in a few places and .gitignore file is included for good measure. Also see https://review.openstack.org/#/c/584498/ Change-Id: If02713fd427613433f554272c9962e0ebb95b1d6