Updated openstack/openstack
Project: openstack-infra/devstack-gate  6ae2e34896948fa7640f97afacfa2e9359f6d1bd
null
Archive config files along with logs

When debugging gate failures, it's useful to know what the config file
looked like in order to replicate issues locally or spot possible errors
at a glance.

This patch makes the cleanup function keep the config files of every
project (if present).

Change-Id: Id8a99c35e9e4370cfb316c5a4aae2899fea3f5bc