libvirt-dev missing from TESTONLY system package lists

[Mike Spreitzer]

Nova's `tox -epy27` will fail if you do not have the system package named libvirt-dev installed in your operating system. In particular, it will fail while installing libvirt-python version 1.2.5 --- which fails to build if libvirt-dev is missing.

[Mike Spreitzer (mike-spreitzer)]

I found this on a current ubuntu 14.04.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/117703

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/117703
Committed: https://git.openstack.org/cgit/openstack-dev/devstack/commit/?id=3edd4540b936d1f03e990660312f2377354140a8
Submitter: Jenkins
Branch: master

commit 3edd4540b936d1f03e990660312f2377354140a8
Author: Mike Spreitzer <email address hidden>
Date: Fri Aug 29 06:52:54 2014 +0000

    Added libvirt-dev[el] as a required system package

    Added libvirt-dev as a system package to install with apt-get and
    libvirt-devel as a system package to install with rpm.

    Early drafts qualified with "testonly" (meaning to install only if
    INSTALL_TESTONLY_PACKAGES is true). This is needed because installing
    libvirt-python version 1.2.5 on Ubuntu 14.04 was observed to fail in
    the building step if libvirt-dev is missing. Later drafts removed
    that qualification, because Sean Dague said he thinks libvirt-dev[el]
    is always required.

    Change-Id: Ie6a272f60059a1f363630f307416b32c450a1ebb
    Closes-Bug: 1362948