Connectivity between the endpoint version and OS_VOLUME_API_VERSION.

Adds functionality which allows user to work with
that cinder API version which is the same as
the endpoint version.

Fixes: bug #1169455

Change-Id: I9bb46e602d15856d2da502a6ac2b6c25e76f4fa3
Merge "Connectivity between the endpoint version and OS_VOLUME_API_VERSION."
Implement reset-state (os-reset_status) action

This change implements a reset-state method in the
cinderclient which exposes the extension: os-reset_status
from the Cinder API.

Fix bug 1190731

Change-Id: I8f631f0f19ca16e0fdd1e3adcf923cc684292887
Merge "Implement reset-state (os-reset_status) action"