Updated openstack/openstack
Project: openstack/ceilometer  521f7dd92178773815826a3a0dd51edc29b75ed3
null
Made get_engine method module-private

This method is not accessed outside of this module so there is no need
for it to be public.

Encapsulation this method will allow us to improve connection creation.

Change-Id: I59e13c61510a81904858e575c2f6f8989727026c