Add dcos-integration-test/extra/test_users.py
Add dcos-integration-test/extra/test_users.py

mesosphere-mergebot/dcos,dcos/dcos,GoelDeepak/dcos,mesosphere-mergebot/dcos,mesosphere-mergebot/mergebot-test-dcos,kensipe/dcos,dcos/dcos,GoelDeepak/dcos,kensipe/dcos,dcos/dcos,mesosphere-mergebot/mergebot-test-dcos,surdy/dcos,mesosphere-mergebot/dcos,surdy/dcos,kensipe/dcos,mesosphere-mergebot/dcos,GoelDeepak/dcos,surdy/dcos,dcos/dcos,mesosphere-mergebot/mergebot-test-dcos,GoelDeepak/dcos,surdy/dcos,kensipe/dcos,dcos/dcos,mesosphere-mergebot/mergebot-test-dcos