Release oslo.cache for Antelope-1 milestone

This is a library release for oslo.cache for the Antelope-1
milestone. This repository contains commits that have not been releases
for this cycle yet.

If the team is ready to process with this release, please leave a +1
to indicate we should go ahead with the release.

If the team needs more time for things about to merge, or if there is
some other reason a release should not be done at this time, please
leave a -1 with a comment indicating the status. Then update the patch
with the new commit hash to use once the team is ready to do the
release.

$ git log --oneline --no-merges 3.1.0..2bf1bfc
2bf1bfc Imported Translations from Zanata
fb13f8d Add Python3 antelope unit tests
df7cd21 Update master for stable/zed
7c6effd Add bmemcached as optional dependency

Signed-off-by: Hervé Beraud <hberaud@redhat.com>
Change-Id: Ie5c1ec1301d5686dd57706dc1bb842920b30e726

deliverables/antelope/oslo.cache.yaml

@@ -6,3 +6,8 @@ team: oslo
 type: library
 repository-settings:
   openstack/oslo.cache: {}
+releases:
+  - version: 3.3.0
+    projects:
+      - repo: openstack/oslo.cache
+        hash: 2bf1bfc5d2229946f911ec0031c4f7b0f16a6dd4