Updating download function to use reader rather than casting everything into bytes
Adding DeleteResult for snapshots.Delete
Adding DeleteResult for volumes.Delete
Adding DeleteResult for servers.Delete
Adding DeleteResult for v3.endpoints.Delete
Adding DeleteResult for v3.services.Delete
Adding DeleteResult for v3.tokens.Delete
Adding DeleteResult for rackspace.blockstorage.v1.snapshots.Delete
Adding DeleteResult for rackspace.blockstorage.v1.volumes.Delete
Adding DeleteResult for rackspace.compute.v2.servers.Delete
Updating acceptance tests :ok_hand:
Merge pull request #272 from jamiehannaford/streaming-downloads

Updating download function to use reader
Adding common delete result that allows err extraction
Shifting block storage operations to common delete result
Shifting compute operations to common delete result
Shifting identity operations to common delete result
Shifting networking operations to common delete result
Shifting object storage operations to common delete result
Shifting Rackspace operations to common delete result
Hopefully making waitFor less flaky