User cannot change settings after unsuccessful deployment

[Nastya Urlapova]

If deployment has failed user cannot change cluster settings(all settings are locked on UI).

Scenario:
1. create a cluster with 1 Controller for example
2. do some changes for deployment failure (I used incorrect CIDR for public net)

Expected results:
user can change cluster setting on UI after deployment failure

Actual result:
all settings are locked on UI after deployment failure

Version:
cat /etc/fuel_build_id:
 152
cat /etc/fuel_build_number:
 152
cat /etc/fuel_release:
 9.0
cat /etc/fuel_openstack_version:
 mitaka-9.0
rpm -qa | egrep 'fuel|astute|network-checker|nailgun|packetary|shotgun':
 fuel-misc-9.0.0-1.mos8259.noarch
 python-fuelclient-9.0.0-1.mos301.noarch
 fuel-9.0.0-1.mos6325.noarch
 fuel-provisioning-scripts-9.0.0-1.mos8611.noarch
 fuelmenu-9.0.0-1.mos263.noarch
 fuel-ui-9.0.0-1.mos2641.noarch
 fuel-migrate-9.0.0-1.mos8259.noarch
 fuel-ostf-9.0.0-1.mos921.noarch
 shotgun-9.0.0-1.mos87.noarch
 python-packetary-9.0.0-1.mos130.noarch
 fuel-bootstrap-cli-9.0.0-1.mos272.noarch
 fuel-nailgun-9.0.0-1.mos8611.noarch
 fuel-setup-9.0.0-1.mos6325.noarch
 rubygem-astute-9.0.0-1.mos733.noarch
 fuel-mirror-9.0.0-1.mos130.noarch
 fuel-openstack-metadata-9.0.0-1.mos8611.noarch
 fuel-notify-9.0.0-1.mos8259.noarch
 fuel-release-9.0.0-1.mos6325.noarch
 nailgun-mcagents-9.0.0-1.mos733.noarch
 network-checker-9.0.0-1.mos72.x86_64
 fuel-utils-9.0.0-1.mos8259.noarch
 fuel-library9.0-9.0.0-1.mos8259.noarch
 fuel-agent-9.0.0-1.mos272.noarch

[Bug Checker Bot (bug-checker)]

(This check performed automatically)
Please, make sure that bug description contains the following sections filled in with the appropriate data related to the bug you are describing:

steps to reproduce

For more detailed information on the contents of each of the listed sections see https://wiki.openstack.org/wiki/Fuel/How_to_contribute#Here_is_how_you_file_a_bug

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/301816

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/301816
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=b9e911c2bca9e1dbd3be8516fdffddc421552ec0
Submitter: Jenkins
Branch: master

commit b9e911c2bca9e1dbd3be8516fdffddc421552ec0
Author: Vladimir Kuklin <email address hidden>
Date: Tue Apr 5 18:26:51 2016 +0300

    Allow errored cluster to have settings unlocked

    Is_locked method erroneously blocks errored cluster.
    This is a simple one-line change fix.

    Closes-bug: #1566330

    Change-Id: Ia831b30528be2e904507cc5d2f8a5541d2a6cc01

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/mitaka
Review: https://review.openstack.org/302924

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/302924
Committed: https://git.openstack.org/cgit/openstack/fuel-web/commit/?id=0ccb21a398204d6eaefed692af5e68977d8cb76f
Submitter: Jenkins
Branch: stable/mitaka

commit 0ccb21a398204d6eaefed692af5e68977d8cb76f
Author: Vladimir Kuklin <email address hidden>
Date: Tue Apr 5 18:26:51 2016 +0300

    Allow errored cluster to have settings unlocked

    Is_locked method erroneously blocks errored cluster.
    This is a simple one-line change fix.

    Closes-bug: #1566330

    Change-Id: Ia831b30528be2e904507cc5d2f8a5541d2a6cc01
    (cherry picked from commit b9e911c2bca9e1dbd3be8516fdffddc421552ec0)

[ElenaRossokhina (esolomina)]

Verified on 9.0 iso#327
cat /etc/fuel_build_id:
 327
cat /etc/fuel_build_number:
 327
cat /etc/fuel_release:
 9.0
cat /etc/fuel_openstack_version:
 mitaka-9.0
rpm -qa | egrep 'fuel|astute|network-checker|nailgun|packetary|shotgun':
 fuel-release-9.0.0-1.mos6344.noarch
 fuel-provisioning-scripts-9.0.0-1.mos8691.noarch
 network-checker-9.0.0-1.mos72.x86_64
 fuel-openstack-metadata-9.0.0-1.mos8691.noarch
 python-fuelclient-9.0.0-1.mos315.noarch
 fuelmenu-9.0.0-1.mos270.noarch
 fuel-9.0.0-1.mos6344.noarch
 fuel-utils-9.0.0-1.mos8362.noarch
 fuel-nailgun-9.0.0-1.mos8691.noarch
 rubygem-astute-9.0.0-1.mos743.noarch
 fuel-library9.0-9.0.0-1.mos8362.noarch
 shotgun-9.0.0-1.mos88.noarch
 fuel-agent-9.0.0-1.mos277.noarch
 fuel-ui-9.0.0-1.mos2684.noarch
 fuel-setup-9.0.0-1.mos6344.noarch
 nailgun-mcagents-9.0.0-1.mos743.noarch
 fuel-misc-9.0.0-1.mos8362.noarch
 python-packetary-9.0.0-1.mos135.noarch
 fuel-bootstrap-cli-9.0.0-1.mos277.noarch
 fuel-migrate-9.0.0-1.mos8362.noarch
 fuel-mirror-9.0.0-1.mos135.noarch
 fuel-notify-9.0.0-1.mos8362.noarch
 fuel-ostf-9.0.0-1.mos934.noarch