CBD-1354:  master dashboard now calls show_latest_server.cgi

Change-Id: I7a0a13caff4d4a1305825641a3499a8e851da5ad
Reviewed-on: http://review.couchbase.org/36152
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>