Update toy-hhs.xml to point to branch-master, couchdb and ns_server to remote hhs

Change-Id: Ia771b57d3814ad2efa58a0dbf16610faf165ab72
Reviewed-on: http://review.couchbase.org/43682
Reviewed-by: Harsha H S <hhs.couchbase@gmail.com>
Tested-by: Harsha H S <hhs.couchbase@gmail.com>