Report the duration of the test
Report the duration of the test

Change-Id: I682ae84015a9a242a842a0ea88deaf2275afd475
Reviewed-on: http://review.couchbase.org/34424
Reviewed-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>
Tested-by: Trond Norbye <60edd2ef23891a753f231b0c6f161dc634079a93@gmail.com>

owendCB/memcached,couchbase/memcached,couchbase/memcached,daverigby/memcached,owendCB/memcached,couchbase/memcached,mrkwse/memcached,cloudrain21/memcached-1,daverigby/kv_engine,daverigby/memcached,owendCB/memcached,cloudrain21/memcached-1,mrkwse/memcached,daverigby/kv_engine,cloudrain21/memcached-1,mrkwse/memcached,daverigby/kv_engine,jimwwalker/memcached,daverigby/memcached,cloudrain21/memcached-1,daverigby/kv_engine,jimwwalker/memcached,jimwwalker/memcached,mrkwse/memcached,daverigby/memcached,couchbase/memcached,owendCB/memcached