ceilometer.conf configuration option missing os_auth_url

ceilometer-agent-centrol error connection keystone: \
Skip interval_task because Keystone error: \
Authorization Failed: Unable to establish connection to
http://localhost:5000/v2.0/tokens

Fixed bug #1320951

Change-Id: Iae722595cb51e11e604d373779d74a8968ea3324
Merge "ceilometer.conf configuration option missing os_auth_url"
Merge branch 'master' of https://github.com/openstack-dev/devstack