CBD-983:  for 2.2.0 release, copy of branch-2.1.1.xml

Change-Id: I82a827c9bb9b3006dc4f2be2b3d10f818d267a1c
Reviewed-on: http://review.couchbase.org/27403
Reviewed-by: Chris Anderson <jchris@couchbase.com>
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>