MB-100: new litmus testcases

Change-Id: Ia1486fbe1e31a4d5c45a9f2a54a0ceb8dac5bccd
Reviewed-on: http://review.couchbase.org/27802
Reviewed-by: Ronnie Sun <ronnie@couchbase.com>
Tested-by: Ronnie Sun <ronnie@couchbase.com>