toybuilder: couchstore's manifest

Change-Id: Ie75e32da9abffec8ff3b22d8282fbd8ab8551e2a
Reviewed-on: http://review.couchbase.org/29381
Reviewed-by: abhinav dangeti <abhinav.dangeti@gmail.com>
Tested-by: abhinav dangeti <abhinav.dangeti@gmail.com>