Support PostgreSQL w/ migration 002

[Dan Prince]

Currently Keystone has manual .sql files to upgrade MySQL and SQLite only.

We should be able to write a python migration for 002 that supports MySQL and PostgreSQL...

Sqlite is a bit more difficult so maybe we can just leave the manual .sql files in place for it.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/10581

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/10581
Committed: http://github.com/openstack/keystone/commit/9d5261cfeb1854a02fcd3eb802bc1ba47ef79f1b
Submitter: Jenkins
Branch: master

commit 9d5261cfeb1854a02fcd3eb802bc1ba47ef79f1b
Author: Dan Prince <email address hidden>
Date: Mon Jul 30 22:20:25 2012 -0400

    Implement python version of migration 002.

    This patch adds a python version of keystone migration 002 which
    supports MySQL and PostgreSQL. SQLite still uses manual .sql files
    for now...

    Fixes LP Bug #1031164.

    Change-Id: I2f4f7b0ea42040994bd8e1711ccbbb6d690c868f