Manila tempest tests are failing due to change in isolated_creds file name

[Yogesh]

Tempest file "isolated_creds" under tempest/common has been renamed as "dynamic_creds". However, manila tempest tests are still referring to the old name, therefore tests are failing.
We will need to change the import statements and the various other references in manila tests to make them run successfully.

[Valeriy Ponomaryov (vponomaryov)]

This is critical because Manila CI Tempest jobs are broken.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/242002
Committed: https://git.openstack.org/cgit/openstack/manila/commit/?id=0af26bbba27b8bd15422032e6c1447fb7df1daf0
Submitter: Jenkins
Branch: master

commit 0af26bbba27b8bd15422032e6c1447fb7df1daf0
Author: Valeriy Ponomaryov <email address hidden>
Date: Thu Nov 5 13:22:44 2015 +0200

    Sync Manila Tempest plugin with latest Tempest

    Two reasons to do it:
    1) Broken compatibility of old Tempest we use with latest dependencies.
    2) Manila Tempest plugin is incompatible with latest Tempest.

    Change-Id: Iae5a656b72e774d9d62b52d7ffb63edecbb23ca6
    Closes-Bug: #1513105

[Doug Hellmann (doug-hellmann)]

This issue was fixed in the openstack/manila 2.0.0.0b1 development milestone.

[OpenStack Infra (hudson-openstack)]

Related fix proposed to branch: master
Review: https://review.openstack.org/261030

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/liberty
Review: https://review.openstack.org/276441

[OpenStack Infra (hudson-openstack)]

Change abandoned by Tom Barron (<email address hidden>) on branch: stable/liberty
Review: https://review.openstack.org/276441
Reason: I need to investigate further why our downstream stable/liberty tempest tests are failing even though [2] passes without this patch, then perhaps revisit.

[2] https://review.openstack.org/#/c/275332/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/261030
Committed: https://git.openstack.org/cgit/openstack/devstack-plugin-hdfs/commit/?id=fbb6ddc7f74c6e5d13405696be138336f40b95f7
Submitter: Jenkins
Branch: master

commit fbb6ddc7f74c6e5d13405696be138336f40b95f7
Author: Ramana Raja <email address hidden>
Date: Wed Dec 23 20:53:37 2015 +0530

    Use appropriate Tempest per Manila branch

    Fix CI failure by selecting Tempest version based on Manila branch.

    Co-Authored-By: Valeriy Ponomaryov <email address hidden>

    Closes Bug: #1513105

    Change-Id: I4e9b9699ac679511bb4174ffa8c880b8489695f4