networks to interfaces placement works incorrect

[Sergey Vasilenko]

Detailed bug description:
 Networks to interfaces placement will be wrong if some networks present not on all selected nodes.

Steps to reproduce:
* Add nodes with different set of networks (ex: controllers and computes without public)
* On UI select all nodes https://www.dropbox.com/s/ry1dcq0v4s6u332/Screenshot%202016-06-03%2014.19.27.png?dl=0
* Press "configure interfaces"
* Place networks to interfaces, public should be in the middle of interfaces (ex: https://www.dropbox.com/s/0qf47nxd1531uc3/Screenshot%202016-06-03%2014.19.00.png?dl=0)
* Press "Apply"
* See warning: https://www.dropbox.com/s/d6ytg1ecmhsxf30/Screenshot%202016-06-03%2014.19.10.png?dl=0
* Re-enter to configure interfaces page and see, networks on interfaces placement is OK.

Expected results:
  All nodes should the same network placement layout

Actual result:
  Nodes, without public network, have no changes into network placement: https://www.dropbox.com/s/6b266bfiqb4s5i5/Screenshot%202016-06-03%2017.46.43.png?dl=0

Reproducibility:
  100% on my env

Workaround:
 Configure compute nodes separately

Impact:
 UI, UX

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/326380

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/326380
Committed: https://git.openstack.org/cgit/openstack/fuel-ui/commit/?id=c558fa52d03ae03a94dc1bd91d803a1a034dc45f
Submitter: Jenkins
Branch: master

commit c558fa52d03ae03a94dc1bd91d803a1a034dc45f
Author: Julia Aranovich <email address hidden>
Date: Tue Jun 7 14:08:05 2016 +0300

    Forbid interfaces configuration for nodes with different networks

    If selected nodes have different networks then UI should provide
    links to configuration of nodes with the same set of networks.

    Closes-Bug: #1588865

    Change-Id: I0233ec8aaf9221ac84137ecb254010e7863e4122

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/mitaka
Review: https://review.openstack.org/327045

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/327045
Committed: https://git.openstack.org/cgit/openstack/fuel-ui/commit/?id=90de7ef4477230cb7335453ed26ed4306ca6f04f
Submitter: Jenkins
Branch: stable/mitaka

commit 90de7ef4477230cb7335453ed26ed4306ca6f04f
Author: Julia Aranovich <email address hidden>
Date: Tue Jun 7 14:08:05 2016 +0300

    Forbid interfaces configuration for nodes with different networks

    If selected nodes have different networks then UI should provide
    links to configuration of nodes with the same set of networks.

    Closes-Bug: #1588865

    Change-Id: I0233ec8aaf9221ac84137ecb254010e7863e4122