mitaka: release python-novaclient 2.35.0

We want to do this minor release to get some things flushed out before
we start tackling backwards incompatible changes that will trigger a
major version bump to 3.0, like removing the novaclient.v1_1 module.

Changes since 2.34.0:

e9268e9 Functional tests for os-extended-server-attributes
5f5ec35 Add v2 support for optional project_id in version discovery urls
c6a3c76 Check flavor option before image checks
4f16fe6 make project_id optional in urls for version discovery
09bb834 Refactor parsing metadata to a common function

The upper-constraints change is:

I07d33438cd5f13c5c16498b4b275eead7bac244b

Change-Id: I4552b113efd8087ac942405c3c75e12da0f26d71

deliverables/mitaka/python-novaclient.yaml

@@ -27,3 +27,9 @@ releases:
     highlights: >
         Bug fix for backward incompatible change 2961e82bf introduced in
         2.33.0. There is also a dependency update for oslo.serialization.
+  - version: 2.35.0
+    projects:
+      - repo: openstack/python-novaclient
+        hash: e88df234dabcdf747fe2f514b11bfc46c12f357f
+    highlights: >
+        Bug fixes, small updates and testing enhancements.