Do not list tutorial boxes in the ranking.

We still rank these (raw ranking data) but they're no longer part
of the top rankings.

main.go

@@ -205,6 +205,7 @@ func main() {
 
 	// make main slice
 	series_data := make(map[string]interface{})
+	tutorial_boxes := make(map[int]bool)
 	for i := range series {
 		c := 0
 		s := make(map[string]interface{})
@@ -225,6 +226,9 @@ func main() {
 					dd["name"] = boxes[j].name
 					break
 				}
+				if (series[i].series_id == 3) {
+					tutorial_boxes[id] = true
+				}
 			}
 			d[fmt.Sprintf("%v", c)] = dd
 		}
@@ -655,6 +659,11 @@ func main() {
 	c = 0
 	var boxes_topranks = make(map[string]string)
 	for i := range boxes {
+		// remove tutorial boxes from the box ranking.
+		if (tutorial_boxes[boxes[i].box_id]) {
+			continue
+		}
+
 		c = c + 1
 		boxes_topranks[fmt.Sprintf("%v", c)] = fmt.Sprintf("%v: \"%v\" by %v", boxes[i].box_id, boxes[i].name, boxes[i].builder)
 		if c > ranklen {