Comment 3 for bug 1333408

Reviewed: https://review.openstack.org/102105
Committed: https://git.openstack.org/cgit/openstack/heat/commit/?id=cc980d730e8a6c3e26152c6aebf261a718890c2e
Submitter: Jenkins
Branch: master

commit cc980d730e8a6c3e26152c6aebf261a718890c2e
Author: Steve Baker <email address hidden>
Date: Tue Jun 24 17:06:51 2014 +1200

    Prevent "No handlers could be found..." logging

    To prevent this message from being logged during unit tests runs
    or heat-manage calls, the following changes have been made:
    * Make the instance_users deprecation warning use "warnings" and
      move to engine init
    * patch out warnings for engine tests
    * do not log barbican or marconi if importing their clients fails

    Change-Id: Icc4be26bf334a6ce31ad3b8fe9fd244cd9e37be2
    Closes-Bug: #1333408