Allow use of lowercase section names in conf files

[OpenStack Infra]

https://review.openstack.org/#/c/33429/
commit 6c9f2b87e3ff09dba308350f18972bc791b7ba23
Author: Mark McLoughlin <email address hidden>
Date: Tue Jun 18 11:44:06 2013 +0100

    Allow use of lowercase section names in conf files

    Fixes bug #1189889

    oslo.config-1.2.0 normalizes section names in config files to lowercase.
    This means that simply by upgrading to oslo.config-1.2.0, users will now
    be able to do e.g.

      [default_servicetype]
      description = ...
      service_definition = ...

    Change the default config files to make it clear we recommend the use of
    lowercase section names.

    Note, the use of an alpha tarball of oslo.config requires pbr>=0.5.15
    but we already require >=0.5.16.

    DocImpact

    Change-Id: Ia47fb3d168da71d3221b25979f8c9257d70dd64d

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/34563

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/34563
Committed: http://github.com/openstack/openstack-manuals/commit/cd04f82093d2caa2b2fcc26a82913730d0aff139
Submitter: Jenkins
Branch: master

commit cd04f82093d2caa2b2fcc26a82913730d0aff139
Author: Selvakumar Arumugam <email address hidden>
Date: Wed Jun 26 10:06:57 2013 -0500

    Fix Bug 1192140, changed quantum config sections to lower case

    Change-Id: Idd87bb9c3f1397e9c8c9763a243642192d898c2d