Updated openstack/openstack
Project: openstack/ceilometer  9bb91294a20bd4568997790336dc7a3197aa35b8

Add docs about volume/snapshot measurements

This change allows to add information about
measurements of volumes/snapshots.

Implements: blueprint add-new-notifications-types-for-volumes-and-snapshots
Change-Id: I23ec262dc4617af7c270ffc1a4dd17ad9ac69841