CBQE-1259 adopt existing couchbase-cli tools automation for MAC

Also we have a conf file for the basic coverae of MAC functional
automation

Change-Id: I9a8132bfac741c65af346ae2fe3536fcda3a9b1f
Reviewed-on: http://review.couchbase.org/25999
Reviewed-by: Chisheng Hong <chisheng@couchbase.com>
Tested-by: Chisheng Hong <chisheng@couchbase.com>