Updated openstack/openstack
Project: openstack/ceilometer  e07c067d67f2227cd79fd2dc12b4e619f825ee9f
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Use swob instead of webob in swift unit tests

While we are at it, don't bother importing webob and not using it if
we are going to end up using swob.

Change-Id: Ibb8cd23a6e8eb7bed11704b2dcee5bcdb9c3278a