Release final python-adjutantclient for Xena

This proposed a release for python-adjutantclient to get any final merged
changes out prior to the lib freeze for Xena going into effect.

If the team is ready to proceed, please leave a +1 to acknowledge this
release and we will process right away. If the team is working on any
final merges, leave a -1 with some detail on the status and update the
patch with the new commit hash to use when ready.

Patches with no response will be merged by Thursday, September 17.

$ git log --oneline --no-merges 0.8.0..20d234b
20d234b Migrate from testr to stestr

Signed-off-by: Hervé Beraud <hberaud@redhat.com>
Change-Id: Ic47da4d95890932c543330a04f11c1047723563c

deliverables/xena/python-adjutantclient.yaml

@@ -6,3 +6,11 @@ team: adjutant
 type: client-library
 repository-settings:
   openstack/python-adjutantclient: {}
+releases:
+  - version: 0.9.0
+    projects:
+      - repo: openstack/python-adjutantclient
+        hash: 20d234bc370056184a0885e6e6f735db056668a2
+branches:
+  - name: stable/xena
+    location: 0.9.0