[rel-2.5.0] added manifest

It's 2.2.0 manifest with ns_server and testrunner properly advanced.

Change-Id: I39f06e95779d35480269a0be2e8c4a6834412631
Reviewed-on: http://review.couchbase.org/29609
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>