Add notifier events to cinder volume rename, reset-state

Implements: notifiers for cinder volume rename, reset-state
Fixes: bug #1271692
Change-Id: Ie82a4c062904a4f86c9f6364649b8c2b9f71ea6e
Merge "Add notifier events to cinder volume rename, reset-state"
(Test commit) Change README to reflect Jio's fork of Cinder

Change-Id: I3f26c0a736e63725aec24ca2fa12c707b8e6460f