Updated openstack/openstack
Project: openstack-dev/devstack  63d06bcad9b6716fc4c4f69d52a83ccd40d160b2
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Make mongo install for ceilometer NOPRIME

mongodb packages are missing on some platforms, so we switch to a
manual install.  Also gate the mongo call in cleanup

Change-Id: I1755e461c66be30da3db2a0994f908503c4c38ea