MB-100: Manifests/toy-couchstore

- Points to kvshard3
(toybuild3)

Change-Id: I134e1570a4ec8a78390232f96324f83767a6e4e3
Reviewed-on: http://review.couchbase.org/26082
Reviewed-by: abhinav dangeti <abhinav.dangeti@gmail.com>
Tested-by: abhinav dangeti <abhinav.dangeti@gmail.com>