hub-cap/reddwarf_lite — pull request #106 by sacharya (2012-06-08 09:27:02+00:00)
Title: Async instance create operation

202 response is sent before the calls to nova/volume are completed.
So need to rely on our database for some info in the response, and
hence the SimpleInstance.

If anything fails during the async creation process, ServiceStatus
is updated to ERROR.

Likewise, if the get/list calls fails from server/volume, we can
use the SimpleInstance.