nova bash-completion needs authenication

[Atsushi SAKAI]

"nova bash-completion" needs authenication.

CLI-generation tool needs
  nova help xxxxx (<= already fixed in 2.29.0 launchpad #1491677)
also
  nova bash-completion

With above fixing, cli-generation tool works fine.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/223012

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/223012
Committed: https://git.openstack.org/cgit/openstack/python-novaclient/commit/?id=b1204446ef17e7df244b23d7552da24a6d86b53f
Submitter: Jenkins
Branch: master

commit b1204446ef17e7df244b23d7552da24a6d86b53f
Author: Atsushi SAKAI <email address hidden>
Date: Mon Sep 14 18:13:01 2015 +0900

    Fix nova bash-completion needs authentication

      CLI-Reference generator requires
       (openstack-doc-tools/bin/doc-tools-update-cli-reference)
      that command line help and bash-completion running without authentication.

      For this purpose, remove authentication check in command and its test.
        Fix nova bash-completion works without authentication.
        Fix nova bash-completion test without setting authentication infomation.

      Define skip_auth for descriminate "nova bash-completion" and do_help.

    Change-Id: Ic1a7f84b1b9cb7e8be6721c1b8096f49e9e9ab33
    Closes-Bug: #1495424