CBQE-0: add 2.2.0->2.5.0 to upgrade paths

Change-Id: I445071e386840a5ba618ebb437f8335cc3cc4f93
Reviewed-on: http://review.couchbase.org/29660
Reviewed-by: Andrei Baranouski <andrei.baranouski@gmail.com>
Tested-by: Iryna Mironava <irynamironava@yandex.ru>