Use `ubuntu` to run zuul service.
At the bottom of installing pip install me.
Add statsd.

Reports statistics on job runtime, number/rate of jobs run, and
number/rate of individual gerrit events to statsd.

Change-Id: I0db9352610b4c268c95da98fd282d7f463945f90
Reviewed-on: https://review.openstack.org/18628
Reviewed-by: Monty Taylor <mordred@inaugust.com>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Approved: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins

Conflicts:

	zuul/scheduler.py