* additional container tests
* refactor test cross policy copy
* make functional tests cleanup better
In-process functional tests only define a single ring and will skip some of
the multi-storage policy tests, but have been updated to reload_policies with
the patched swift.conf.
DocImpact
Implements: blueprint storage-policies
Change-Id: If17bc7b9737558d3b9a54eeb6ff3e6b51463f002
c11ac01252