network id is not present in admin's update network model

[Masco]

in admin's update network model, only network name is shown, since duplicate name allowed, i t is difficult to differentiate.
adding network id will be helpful.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/172805

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/172805
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=6b44922fb3d88835053b98d272a081812ae5bad8
Submitter: Jenkins
Branch: master

commit 6b44922fb3d88835053b98d272a081812ae5bad8
Author: Masco Kaliyamoorthy <email address hidden>
Date: Mon Apr 13 12:05:03 2015 +0530

    added network id field in admin's update network model

    In admin's update network model, only name field is shown.
    Since duplicate name is allowed, it is difficult to differentiate the two with same name.
    This patch adding the readonly text input to show the network id.

    Change-Id: I95291f5b36a5d3d4f76db7b48233eca1f4b958ff
    Closes-Bug: #1443265