Updated openstack/openstack
Project: openstack/nova  cd087e8ccc68ba11ba5f0841b7855a96457a1be6

VMware: add tests for image fetch/cache functions

Adds unit tests for the vmops image fetch/prepare/cache functions.
No existing tests are modified.

partial blueprint vmware-spawn-refactor

Change-Id: I913c7f5ecfec586ff79e2bc7ab1969a8824476b5