The database schema was changed without any tests

[Igor Gajsin]

There were changes of the nailgun's database in the 634b66df450239378a2dfff2797422c6de053af8 commit for the fuel-web repository. In particular, the were dropped:
* table 'vmware_attributes'
* column 'vmware_attributes_metadata' in the table 'releases'
* column 'vmware_attributes' in the table 'cluster_changes'

Absence of tests for alembic migrations makes the maintainability impact in to the project.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/438473

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/438473
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=a8ac320d8f3f386ce6e29dd3207c92db9e17ddf7
Submitter: Jenkins
Branch: master

commit a8ac320d8f3f386ce6e29dd3207c92db9e17ddf7
Author: Igor Gajsin <email address hidden>
Date: Mon Feb 27 15:32:27 2017 +0300

    add tests for alembic migration

    There was the commit that removes vmware. It has alembic migrations,
    but doesn't have any tests for that. This commit fixes that.

    Change-Id: I66090b0a0d7bfbd8e2365ec027fabfefc9d612da
    Closes-Bug: #1668249

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/ocata
Review: https://review.openstack.org/447574

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/newton
Review: https://review.openstack.org/447575

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/447575
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=94b19f4edf893e07092b4291049377214b12813c
Submitter: Jenkins
Branch: stable/newton

commit 94b19f4edf893e07092b4291049377214b12813c
Author: Igor Gajsin <email address hidden>
Date: Mon Feb 27 15:32:27 2017 +0300

    add tests for alembic migration

    There was the commit that removes vmware. It has alembic migrations,
    but doesn't have any tests for that. This commit fixes that.

    Change-Id: I66090b0a0d7bfbd8e2365ec027fabfefc9d612da
    Closes-Bug: #1668249
    (cherry picked from commit a8ac320d8f3f386ce6e29dd3207c92db9e17ddf7)

[OpenStack Infra (hudson-openstack)]

Change abandoned by Fuel DevOps Robot (<email address hidden>) on branch: stable/ocata
Review: https://review.openstack.org/447574
Reason: This review is > 4 weeks without comment, and failed Jenkins the last time it was checked. We are abandoning this for now. Feel free to reactivate the review by pressing the restore button and leaving a 'recheck' comment to get fresh test results.