Hide Host Aggregates panel if Nova does not support it

[Lin Hua Cheng]

Aggregates is a Nova extension, there is no guarantee that it would always be available. The panel should be hidden when Nova does not support it.

[Richard Jones (r1chardj0n3s)]

I devised a simple change to the panel to fix this (https://review.openstack.org/#/c/117090/) but the change caused about half the 1000+ tests in the horizon suite to fail thanks to the delicate nature of the test setup.

I believe I would have to individually address each of those 498 test failures, modifying each test to make it work again, just to support the 2 lines I added to fix this bug.

I don't believe that's reasonable, so I invite anyone else to suggest a fix that breaks fewer tests :)

[OpenStack Infra (hudson-openstack)]

Change abandoned by Richard Jones (<email address hidden>) on branch: master
Review: https://review.openstack.org/117090
Reason: This change results in far too much work to fix all the failing tests.

[Richard Jones (r1chardj0n3s)]

I've abandoned that change. Perhaps someone else might discover a way to fix this bug that won't take nearly as much effort.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/121127
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=4556bc808635d0f0b77139e6b1f2c25f3f4c1093
Submitter: Jenkins
Branch: master

commit 4556bc808635d0f0b77139e6b1f2c25f3f4c1093
Author: Vlad Okhrimenko <email address hidden>
Date: Fri Sep 12 16:54:47 2014 +0300

    Hide the "Host Aggregates" admin panel if not enabled

    This checks ether the extension is supported in nova and disables
    access to the panel (hiding it) if not.

    Closes-Bug: #1332066
    Change-Id: Ie6f5ec7a833d489adca6d56f34a39579e9eabdde