Updated openstack/openstack
Project: openstack/ceilometer  8e7c7a097fc42d1620a364c6e822c271f28c23a9

Iterates swift response earlier to get the correct status

We must iterate the next middleware app until we get a response
before asking for the headers and status.

Closes-bug: #1326250

Change-Id: I8947bc88754db93e3ebe01ea864c4b489d1bd870