Plumb zookeeper config settings into zuul-scheduler

We need a way to configure zuul to connect to zookeeper.  Add a new
setting into the zuul section of zuul.conf. Multiple zookeeper hosts
would be configured as:

  [zuul]
  zookeeper_hosts=nodepool.openstack.org:2181,foo.openstack.org:1337

Change-Id: I4640c4af5ba925e099978b64c59ed29d723b1230
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
2 files changed