Move kerberos plugin to keystoneauth

https://review.openstack.org/#/c/240458/ is the proposed change in keystoneauth.

Reviewed: https://review.openstack.org/240458
Committed: https://git.openstack.org/cgit/openstack/keystoneauth/commit/?id=2baf7c49ad673ce038974de3a0fce2ec381c1633
Submitter: Jenkins
Branch: master

commit 2baf7c49ad673ce038974de3a0fce2ec381c1633
Author: Brant Knudson <email address hidden>
Date: Fri Oct 30 02:19:25 2015 -0500

    Migrate kerberos plugin

    The auth plugin from the keystoneclient-kerberos repository is
    copied to this package. It was in its own repository because it
    requires the requests-kerberos package and we want to minimize
    requirements in keystoneauth (or keystoneclient at the time the
    plugin was originally developed). Since we've got support for
    "extras" in setup.cfg in pip now this isn't an issue with the
    package anymore. Users of the kerberos plugin must install the
    extra packages using

     $ pip install keystoneauth['kerberos']

    otherwise the plugin will fail to load.

    Closes-Bug: 1512741
    Change-Id: Ia84bf559413e9bfd1a3faaceb417c2477bd10d5f

This issue was fixed in openstack/keystoneauth 2.0.0 release.

Fix proposed to branch: master
Review: https://review.openstack.org/253205

Reviewed: https://review.openstack.org/253205
Committed: https://git.openstack.org/cgit/openstack/python-keystoneclient-kerberos/commit/?id=915957b5e3382d7264daa25fda6e1292e6813033
Submitter: Jenkins
Branch: master

commit 915957b5e3382d7264daa25fda6e1292e6813033
Author: Brant Knudson <email address hidden>
Date: Thu Dec 3 14:46:20 2015 -0600

    Deprecate this package

    The contents of this package have been moved into
    keystoneauth1, so an application importing this package should
    now get a warning telling them to stop using it and use the
    keystoneauth1 version instead.

    Change-Id: I9877a044f98bcb3479bd2d853aedd2d2a5b10b3b
    Closes-Bug: 1512741

This issue was fixed in the openstack/python-keystoneclient-kerberos 0.3.0 release.