Updated openstack/openstack
Project: openstack/ceilometer  c9a67b063082dd25ca426df38ba4cfff87c93339
null
Fix measurement docs to correctly represent Existance meters

There are various meters in the measurement docs that
wrongly note the meter as Duration instead of its
existance. The meters fixed include network, port,
router, subnet, floating ip, volume.

fixes bug #1252988

Change-Id: I45a84769d6ee46d53e580ae08cbbf32ed20562b1