Current clean step is not reported via the API

[Josh Gachnang]

Cleaning can take a very long time. Giving operators insight into what clean step is currently being executed is important, to help them troubleshoot and have insight into the process.

[Ruby Loo (rloo)]

The ironic patch: https://review.openstack.org/#/c/188873/

[Ruby Loo (rloo)]

python-ironicclient patch: https://review.openstack.org/#/c/199340/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/199340
Committed: https://git.openstack.org/cgit/openstack/python-ironicclient/commit/?id=aea764b451e69d9b3782c482cd017c2bdd140c15
Submitter: Jenkins
Branch: master

commit aea764b451e69d9b3782c482cd017c2bdd140c15
Author: Ruby Loo <email address hidden>
Date: Tue Jul 7 23:08:34 2015 +0000

    Expose node's clean_step and bump default version

    This exposes the node's clean_step field by bumping the default version
    from 1.6 to 1.7 and adding clean_step to various lists.

    Change-Id: I2d9f2e58ed198bc8cb5bab67a6f8baf85bbbf972
    Closes-Bug: #1466693