Module novaclient.v1_1 is used as implementation of V1.1, V2 and V3.
Since future development(microversioning) will be done across V2,
implementation should be done in appropriate module(to prevent misleading).
Despite the fact that implementation for all versions are equal, discover
method for contrib path worked only for v1.1. This patch fixes this bug and
modifies shell tests to check all versions.
This patch adds support for the assisted volume snapshots API extension.
This is used by Cinder to ask Nova to perform a volume snapshot on its
behalf. It's required when the volume is actually file backed (like
qcow2) and the hypervisor needs to be involved in the snapshot
Required for blueprint qemu-assisted-snapshots