Publish recent api changes as v2.2

Throughout the Havana development cycle, we have added several
features to the v2 api, without breaking backwards compatibility.
So this change bumps up our minor version number.

Change-Id: If0e5ffe117200fbfb967c8c95a63608f12dbba58
(cherry picked from commit 249f800de13867af31590df557a715cabbc2e1d6)