MB-100: run mcsoda in unbounded mode

Change-Id: I7cbea01a6c9f7ac27b5e91fe7d32415710fe0d17
Reviewed-on: http://review.couchbase.org/25200
Reviewed-by: Pavel Paulau <pavel.paulau@gmail.com>
Tested-by: Pavel Paulau <pavel.paulau@gmail.com>