Ability to delete label in Racks

[Igor Shishkin]

Hello,

Please add ability to delete labels in Racks.

Please note, this should have confirmation since it's destructive operation.

Thanks in advance.

[Alexander Lomski (aliaksandr-lomski)]

Is there any need for create/edit support as well?

[Fuel Devops McRobotson (fuel-devops-robot)]

Fix proposed to branch: master
Change author: Alexander Lomski <email address hidden>
Review: https://review.fuel-infra.org/22297

[Fuel Devops McRobotson (fuel-devops-robot)]

Reviewed: https://review.fuel-infra.org/22297
Submitter: Alexander Charykov <email address hidden>
Branch: master

Commit: e18f25911ca52806cc15182f4497be82b7d4a84e
Author: Alexander Lomski <email address hidden>
Date: Wed Jun 22 11:26:35 2016

Enable delete button in labels list.

Labels page has been converted to CRUD system and delete dialog was
enabled for users with 'delete' permissions. Details and update pages
are still disabled for labels.

Minor tweak to Web UI tests to reflect URL changes.

Change-Id: I0cc50d175c5ab1d1ce7137f0a84d4aa83765398c
Closes-Bug: #1567119