Increased RELAY_REQUEST_MAX_HOPS from 3 to 4, in an attempt to reach more peers.

src/main/java/org/qortal/controller/arbitrary/ArbitraryDataFileListManager.java

@@ -59,7 +59,7 @@ public class ArbitraryDataFileListManager {
     /** Maximum number of seconds that a file list relay request is able to exist on the network */
     private static long RELAY_REQUEST_MAX_DURATION = 5000L;
     /** Maximum number of hops that a file list relay request is allowed to make */
-    private static int RELAY_REQUEST_MAX_HOPS = 3;
+    private static int RELAY_REQUEST_MAX_HOPS = 4;
 
 
     private ArbitraryDataFileListManager() {