Updated openstack/openstack
Project: openstack-infra/devstack-gate  fcaef2c4b180d5f1e4e34f3897fb93db042089a1

Capture *.failure logs from $BASE/status/stack

When a service fails to start properly the output is dumped in
*.failure files, however devstack-gate wasn't archiving them so it
made identifying the causes of certain failures difficult to debug.
This commit addresses that by copying these logs too.

Change-Id: Icbb5188c09938811d0566a869a26a22502520df2