openstack-staging

Have OpenStack tested on top of xen's master and libvirt's master.

Now powered with subunit-to-substep engine.

The Tempest test names reported via subunit are in the form:
tempest.scenario.test_minimum_basic.TestMinimumBasicScenario.test_minimum_basic_scenario[compute,id-bdbb5441-9204-419d-a225-b4fdbfb1a1a8,image,network,volume]

so very long. Sometime, it in the form: "setUpClass ($classname)" for skipped
or failed tests preparation.

git tree:
https://xenbits.xen.org/git-http/people/aperard/osstest.git
tag: openstack-v12

(Acked, New):
A  ts-openstack-deploy: Deploy OpenStack on a host with devstack
A  ts-openstack-tempest: Run Tempest to check OpenStack
A  ts-openstack-deploy: Set http proxy
A  TestSupport: provide target_https_mitm_proxy_cert_path
A  ts-openstack-deploy: set CURL_CA_BUNDLE
A  ts-openstack-deploy: Keep CURL_CA_BUNDLE when sudo is called
A  ts-openstack-deploy: Try to disable use of SYSTEMD
A  ts-kernel-build: Enable network related modules for Neutron
A  ts-openstack-deploy: Switch to Neutron for network
   ts-openstack-deploy: Increase open fd limit for RabbitMQ
A  ts-openstack-deploy: Apply a Tempest patch
A  ts-openstack-deploy: Ignore libvirt-python version and use latest
A  ts-openstack-tempest: Fix tempest invocation
   ts-openstack-tempest: Update list of skipped tests
A  ts-openstack-deploy: Move logs to /var/log/openstack
A  ts-logs-capture: Capture OpenStack logs
A  ts-openstack-deploy: Increase devstack timeout
 N TestSupport: Implement target_cmd_subunit a subunit stream parser into substeps
 N ts-openstack-tempest: Use target_cmd_subunit
   Create a flight to test OpenStack with xen-unstable and libvirt
A  make-flight: Increase dom0_mem for openstack flight

Changes in V12:
- new patches to introduce a subunit stream parser and have subunit tests
  appears as substeps.
- rework openstack flight generation, get rid of the patch that introduced
  'openstack' branch which is not used, have the flight test a stable branch of
  openstack (release Ocata), branch name: openstack-ocata

Changes in V11:
- plenty of new patches, on top of the original 3 patches that were acked.
- and an attempt at creating a flight for a stable branch of openstack. But
  there is many git tree to pull the branch from.