Updated openstack/openstack
Project: openstack/horizon  15b7c6a8f9bb2c12058e9447ed29806a3070d378

Check host is not none in each availability zone

Check that host is not none before trying to parse the services that
are up in each availability zone

Change-Id: I757f35ca2fa84da3441b544280c1c430bf3e8fb8
Closes-Bug: #1297920
(adopted from commit 7f30ab5124618c5b11eebf9c6d69bcfd8a47adc3,
change path from 'dashboards/admin/aggregate' to
'dashboards/admin/info')
Original fix by Santiago Baldassin <santiago.b.baldassin@intel.com>