Comment 2 for bug 1495191

Reviewed: https://review.openstack.org/222904
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=8064dcc4858d4463626eb795e9bfd97ba66649c9
Submitter: Jenkins
Branch: master

commit 8064dcc4858d4463626eb795e9bfd97ba66649c9
Author: Frode Nordahl <email address hidden>
Date: Sun Sep 13 10:42:28 2015 +0200

    Do not pass along cidr and ip_version to create_subnet when not used

    A recent change in Neutron or netaddr makes it an error to send create_subnet
    message with cidr set to None.

    This patch updates Horizon code to make the cidr and ip_version parameters
    optional and updates the handling of these values from the subnet create
    workflow.

    Change-Id: Icd55a3629422d60470182591449cf726d52575a6
    Closes-Bug: 1495191