neutron-db-manage --autogenerate needs update after DB healing

[Henry Gessau]

Now that the DB is healed, neutron-db-manage revision --autogenerate needs to be updated.
The template should do unconditional upgrade/downgrade.
The env.py should include all models from head to compare against the schema.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/108536

[Henry Gessau (gessau)]

Jakub Libosvar is working on this bug.

[OpenStack Infra (hudson-openstack)]

Change abandoned by Kevin Benton (<email address hidden>) on branch: master
Review: https://review.openstack.org/108536
Reason: I made a grave mistake and assumed someone else wasn't working on this bug.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/108700

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/108700
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=9ea42f50d3136885ffb1f7b23a7d831165f25247
Submitter: Jenkins
Branch: master

commit 9ea42f50d3136885ffb1f7b23a7d831165f25247
Author: Jakub Libosvar <email address hidden>
Date: Tue Jul 22 10:45:52 2014 +0200

    Change autogenerate to be unconditional

    Template for generating db migration scripts are now not run according
    to used plugins. Target environment is set to use all available models
    but also used plugins are kept for backward compatibility.

    Part of this patch is script that will drop unused tables to avoid
    generating the drop in future migration scripts.

    Change-Id: I90a7d3416de24f2317ccdeb828bb8bd973ee5e61
    Closes-bug: #1346638