Release python-novaclient 3.1.0

python-novaclient was providing a SHA1 for a non-rebased commit. It was then
missing all the intermediate commits between the review change and the
corresponding merge patch.
Fixing the docstring for 3.0.0 and cutting a new 3.1.0 accordingly.

Change-Id: Ic6c32fbaeb740d28905c257dbe7e558e00fc8ef3

deliverables/mitaka/python-novaclient.yaml

@@ -38,4 +38,10 @@ releases:
       - repo: openstack/python-novaclient
         hash: 6b0fe2a424630f6ebcb1cf0c42d5ac8590705875
     highlights: >
-        Bug fixes, drop legacy compatibility, microversion 2.12 support.
+        Bug fixes, drop legacy compatibility, microversion 2.9 support.
+  - version: 3.1.0
+    projects:
+      - repo: openstack/python-novaclient
+        hash: 36e125a61e1f047ab9f3a2ab533050ae54232fe9
+    highlights: >
+        Bug fixes, drop py33 support, microversion 2.12 support.