MB-100: added read litmus mwr conf

Change-Id: I5f08a34724a39965070a4d3e72cb18a0ea8cd5bc
Reviewed-on: http://review.couchbase.org/27332
Reviewed-by: Ronnie Sun <ronnie@couchbase.com>
Tested-by: Ronnie Sun <ronnie@couchbase.com>