'Undefined' value appears in response when user do logout

[Anastasia Palkina]

Logout from Fuel UI.

'Undefined' value appears in DELETE response (see screen)

VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "8.0"
  api: "1.0"
  build_number: "327"
  build_id: "327"
  fuel-nailgun_sha: "ec25ae8df28e1f1d87da653c5aab2711dff729f6"
  python-fuelclient_sha: "7c7a756fb6a3d091851c060003a2965c67aa353d"
  fuel-agent_sha: "d354cbe61b055db848a15ce66fb7ae92178d2c0a"
  fuel-nailgun-agent_sha: "a33a58d378c117c0f509b0e7badc6f0910364154"
  astute_sha: "c56dfde2da034151a7e707b381c4cf9d213b4ba2"
  fuel-library_sha: "bcc3d042a47547f6ad826360a85ef21dcaf25882"
  fuel-ostf_sha: "b2ebf15a3530b5c7b57707acf8642c1c3ac71bd8"
  fuel-mirror_sha: "8100acb3a566358d0d4ecc66de32d39626263028"
  fuelmenu_sha: "2942a85796d37f09ba8c8c6d762d8813292cf0d4"
  shotgun_sha: "cacb93cbc28910ff0dc38f30a855efa9af50d8ce"
  network-checker_sha: "d443ef47abeda58d319bc8d33d5005dd09440a02"
  fuel-upgrade_sha: "718aa3d7021fee2970f0fa6791cf5188578cc516"
  fuelmain_sha: "3faa824728ce60734abe602ff3778976f8a16eed"

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/260454

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/260454
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=2aaeb803a27d900b815229b879d23f3993a1c9a3
Submitter: Jenkins
Branch: master

commit 2aaeb803a27d900b815229b879d23f3993a1c9a3
Author: Vitaly Kramskikh <email address hidden>
Date: Tue Dec 22 14:42:24 2015 +0300

    Fix token removal on logout

    Was broken by 69b939321bbe87d3dd4772b50902ff7b633ff171

    Change-Id: I22b1a40fd5b13e6ef067d5eba575225708a3d85c
    Closes-Bug: #1528536

[Anastasia Palkina (apalkina)]

Verified on ISO #338

VERSION:
  feature_groups:
    - mirantis
  production: "docker"
  release: "8.0"
  api: "1.0"
  build_number: "338"
  build_id: "338"
  fuel-nailgun_sha: "bad4d014df29beaf3708f1a050e808d20542b878"
  python-fuelclient_sha: "268847aa06e16f42bb3a3bf851a1869adfc36c46"
  fuel-agent_sha: "1d3a2b8d9e8961ebcdfa5db55e2e809f7dd404a8"
  fuel-nailgun-agent_sha: "92ebd5ade6fab60897761bfa084aefc320bff246"
  astute_sha: "c7ca63a49216744e0bfdfff5cb527556aad2e2a5"
  fuel-library_sha: "7a7c93e8b55d0e3e9ffd64b0b0e29451cdc0cfb0"
  fuel-ostf_sha: "d8cbc4f65361e034193479b19f84747d1c33894e"
  fuel-mirror_sha: "d15edd2128b9a4644f1db8089b0ecdf7954a2e57"
  fuelmenu_sha: "2942a85796d37f09ba8c8c6d762d8813292cf0d4"
  shotgun_sha: "bf79f1ac08a256160f2835a71808ec4f8d2bbf9e"
  network-checker_sha: "d443ef47abeda58d319bc8d33d5005dd09440a02"
  fuel-upgrade_sha: "616a7490ec7199f69759e97e42f9b97dfc87e85b"
  fuelmain_sha: "796125856c2325743124092a52f28e26c013c058"