Cinder integration test

Integration test for cluster installation with cinder node. Validation for remote.isfile('/tmp/%s-file' % role) is disabled for cinder node because cinder node does not have such file. Tested http://jenkins-product.srt.mirantis.net:8080/view/Product%20and%20Community/job/fuelweb_test.integration.test_node/36/testReport/fuelweb_test.integration.test_node/TestNode/