[docs] Update the glance_store swift section with Keystone v3 support

[Olena Logvinova]

Keystone v3 (along with v2 - default) is now supported in the Swift storage backend configuration according to the patch https://review.openstack.org/#/c/193422/3

The appropriate section of the guide should reflect this change
( http://docs.openstack.org/developer/glance/configuring.html#configuring-the-swift-storage-backend ).

[Remo Mattei (remo-o)]

I will be happy to help on this topic if needed. Please let me know.

[Olena Logvinova (ologvinova)]

Thanks Remo! I'll add you to review once I upload the patch. =)

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/242583
Committed: https://git.openstack.org/cgit/openstack/glance/commit/?id=0c966a602da94bde280259931bd505fabf872b85
Submitter: Jenkins
Branch: master

commit 0c966a602da94bde280259931bd505fabf872b85
Author: Olena Logvinova <email address hidden>
Date: Fri Nov 6 19:40:28 2015 +0200

    [docs] Update description of Glance-Swift conf options

    This patch:

    1. Updates the description of 4 deprecated options:
       * swift_store_auth_version
       * swift_store_auth_address
       * swift_store_user
       * swift_store_key
    2. Adds a new sub-section: Configuring Swift configuration file.

    Co-Authored-By: Mike Fedosin <email address hidden>
    Co-Authored-By: Olena Logvinova <email address hidden>

    Change-Id: I41baa2343cf92d819a4a64a2e269e1cb2e3be3f4
    Closes-Bug: #1426813
    Closes-Bug: #1509349

[Thierry Carrez (ttx)]

This issue was fixed in the openstack/glance 12.0.0.0b1 development milestone.