Open Stack

Almost all of the OpenStack REST apis return little of user value in the 
response headers, with json bodies containing the returned data. The 
tempest client methods had been returning two values with one always 
being ignored. To clean that up before moving the service clients to 
tempest-lib, we changed the client methods to return one value instead 
as recorded in this blueprint: 
https://blueprints.launchpad.net/tempest/+spec/clients-return-one-value.

This is mostly done except for swift. Swift is different in that most 
interesting data is in the headers except for GET methods, and applying 
the same methodology as the others does not make sense to me. There are 
various ways the swift client could be changed to return one value, or 
it could be left as is. I am soliciting proposals from those most 
interested in the swift tests. If there is no input or consensus on how 
this should be changed, I will leave the swift client as-is and close 
the blueprint.

  -David