N/A appear in message instead of id

[tinytmy]

In some message it appear N/A, we can use id instead of it.
Example:
upload image do not enter any character except space in the name,
then we can see image id show in the name column.
if delete this image, the message appear N/A.
I think show id is more useful.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/153948

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/153948
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=3d884780196076aef23d5e731626181dc22b805c
Submitter: Jenkins
Branch: master

commit 3d884780196076aef23d5e731626181dc22b805c
Author: tinytmy <email address hidden>
Date: Mon Feb 9 14:21:34 2015 +0800

    Change N/A to id in the message

    In some message it appear N/A, we can use id instead of it.

    Closes-bug:#1418387

    Change-Id: Ife75ef3e83a1aa8285e52f93a8a5cabe908e84b4