MB-100 Bump mb_master advertised version.

Change-Id: Idefec0df5ae671e4fc2989472d7b6599783dcac6
Reviewed-on: http://review.couchbase.org/27328
Reviewed-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>
Tested-by: Aliaksey Kandratsenka <alkondratenko@gmail.com>