add some replacement methods. still needs more work.
finish replace_policy
finish the replace_ methods (and fix them) and add tests
revert debugging change
clarifications
more doc clarifications
be more explicit about parameter lists.
add replace* methods to client object, and avoid 400 on removing metadata
Added support for Cloud Queues (Marconi).
Added monitoring to the smoke test script.
Merge branch 'replace-methods' of github.com:radix/pyrax into radix-replace-methods
Fixed formatting and comments