Comment 3 for bug 1179159

Reviewed: https://review.openstack.org/31134
Committed: http://github.com/openstack/cinder/commit/0b553dcaf8b158872c472fc0dbd9d46d2fc27d25
Submitter: Jenkins
Branch: master

commit 0b553dcaf8b158872c472fc0dbd9d46d2fc27d25
Author: John Griffith <email address hidden>
Date: Thu May 30 16:05:45 2013 -0600

    Fix config registration in cinder volume drivers.

    The config documentation relies on options being registered
    on a modules import. Our need to move the drivers to using
    self.configuration for multi-backend support means that options
    wouldn't be loaded until object initialization which breaks
    documentation.

    This patch puts a dummy CONF init/load back in the drivers. While putting
    this change together I came across a number of drivers still using FLAGS,
    and even worse a number of drivers using a mixture of FLAGS and CONF and
    self.configuraiton. So most of those are cleaned up here as well.

    Note there are two drivers that were not updated at all here:
      1. windows.py
      2. zadara.py

    The zadara folks have indicated that they're in the process of updating and
    releasing a new version of their driver so I left that as is.

    The windows driver needs a bit of work to switch over.

    Fixes bug: 1179159

    Change-Id: I90165299bf080da17741d027e36e361540da0ff8