MB-11037:  ep-engine uses branch "MB-11037", everything else at 2.2.0-837

Change-Id: I4ad739596637532731378abc29759b77fea17c98
Reviewed-on: http://review.couchbase.org/36871
Reviewed-by: Eric Limare <eric.limare@couchbase.com>
Tested-by: Eric Limare <eric.limare@couchbase.com>