Mitigate OSSN-0075

[OpenStack Infra]

https://review.opendev.org/634228
Dear bug triager. This bug was created since a commit was marked with DOCIMPACT.
Your project "openstack/glance" is set up so that we directly report the documentation bugs against it. If this needs changing, the docimpact-group option needs to be added for the project. You can ask the OpenStack infra team (#openstack-infra on freenode) for help if you need to.

commit 9fdabcabf31b90e703bf9a68fa16c75731685a21
Author: Abhishek Kekane <email address hidden>
Date: Mon Jul 2 10:03:48 2018 +0000

    Mitigate OSSN-0075

    Modified the current ``glance-manage db purge`` command to eliminate images
    table from purging the records. Added new command
    ``glance-manage db purge_images_table`` to purge the records from images
    table.

    DocImpact
    SecurityImpact

    Change-Id: Ie6641659b54543ed9f96c393d664e52a26bfaf6a
    Implements: blueprint mitigate-ossn-0075
    (cherry picked from commit 5cc9d999352c21d3f4b5c39d3ea9d4378ca86544)