Fix construction of webhooks with policy IDs
didn't mean to remove that __init__ method

(though I think it's a no-op)
Merge pull request #217 from radeex/webhook-needs-group

fix creation/retrieval of webhooks with policy id
Added code to force 'flavor' arguments to str.
Fixed broken tests
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
don't require nodes to be passed any more
Merge pull request #222 from radix/nodeless-lb

[loadbalancer] Cloud Load balancers no longer require nodes
Fixed smoketest to work when running in multiple regions that don't all offer all services.
Moved _create_body() to manager.
Merge branch 'working' of github.com:rackspace/pyrax into working
Fixed broken test
Fixed the findall() method to be case-insensitive.