Updated openstack/openstack
Project: openstack/ceilometer  5df4cb53ae36ddb2a2495cc7aa9a1f3072133930

oslo.messaging context must be a dict

oslo.messaging assume the context is a dict not a RequestContext
This patch ensure this.

Closes-bug: #1275771

Change-Id: Iae58d40f171d1d5780b74b747c26a74cca05b459