Add config_tempest

Change-Id: I80016c1f03a7cfcb52250da63de0e96d5f94c4af
Clean up unstack and clean errors

* Bogus keystone site error
* Extraneous tgt errors

Change-Id: Icd7a00a35d025dae63ce4a1c9ecb8c82e173dfb1
Merge branch 'usb-prereq' into dt-test
Merge branch 'silence-unstack' into dt-test
Merge branch 'conf-tempest' into dt-test