networking-midonet jobs are broken due to Q_L3_ENABLED "cleanup"

[YAMAMOTO Takashi]

midonet doesn't use q-l3 but provides l3 functionality. (thus Q_L3_ENABLED=True)

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/316660

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/317754

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/317754
Committed: https://git.openstack.org/cgit/openstack-dev/devstack/commit/?id=53f59d802f9cc76bf898509344463d8ff3a32143
Submitter: Jenkins
Branch: master

commit 53f59d802f9cc76bf898509344463d8ff3a32143
Author: Armando Migliaccio <email address hidden>
Date: Tue May 17 15:12:24 2016 -0700

    Use Neutron extension information to configure Tempest's public network

    Neutron L3 may implement a variety of extensions: router, external-net,
    dvr, ext-gw-mode, extraroute, l3-ha, etc. The public network uuid is
    only going to be made available if and only if the external-net extension
    is available, because that's the one that provides Floating IP support.

    Rather than making Tempest aware of q-l3 service (when q-* services
    are supposed to be legacy), it is better to tune this configuration
    based on the extension availability. This decouples Tempest from
    Neutron setup internals.

    Change-Id: I4889fc3d21bd221785b507995f1b3da0e8f52b46
    Related-bug: 1582119

[OpenStack Infra (hudson-openstack)]

Change abandoned by garyk (<email address hidden>) on branch: master
Review: https://review.openstack.org/317877
Reason: alfi

[OpenStack Infra (hudson-openstack)]

Change abandoned by YAMAMOTO Takashi (<email address hidden>) on branch: master
Review: https://review.openstack.org/316660

[Sean Dague (sdague)]

This devstack bug was last updated over 180 days ago, as devstack
is a fast moving project and we'd like to get the tracker down to
currently actionable bugs, this is getting marked as Invalid. If the
issue still exists, please feel free to reopen it.