MB-9372:  2.5.0 manifests are copies of 2.2.1

Change-Id: I9f9485e87744a77eec9fd80c155a02b99cba462c
Reviewed-on: http://review.couchbase.org/29617
Tested-by: Philip Labee <philip@couchbase.com>
Reviewed-by: Philip Labee <philip@couchbase.com>