This change implements storage policies as defined by swift:
http://docs.openstack.org/developer/swift/overview_policies.html
There are two primary areas of change in this review
- Add storage policy support to the ringbuilder and ring devices, along with
associated spec tests.
- Adding storage policy support and enforcing rules in swift.conf using the
swift_storage_policy type and provider. Also: updated spec tests and an
update to swift acceptance test to use storage policies to configure an
additional 3 replica based ring.
See release notes and the README update for more details/instructions.
Change-Id: I2b8db751790704df3f1027a14f61e231591537f3
63688a14e5