Do not use port 8618, it's a leftover from a time when we had two binaries.

Should fix 378 but needs testing from users having the problem since couldn't reproduce it here yet.

coredns_plugin/querylog_top.go

@@ -268,7 +268,7 @@ func fillStatsFromQueryLog() error {
 	return nil
 }
 
-func handleStatsTop(w http.ResponseWriter, r *http.Request) {
+func HandleStatsTop(w http.ResponseWriter, r *http.Request) {
 	domains := map[string]int{}
 	blocked := map[string]int{}
 	clients := map[string]int{}