Improve disconnect reason when ResetOnLogon is not honoured by counter-party

This fixes #960 by clarifying the reason for sequence number in response not being 1 when resetOnLogon is configured to true.

Author: Ramonster1

quickfixj-core/src/main/java/quickfix/Session.java

@@ -2277,7 +2277,11 @@ private void nextLogon(Message logon) throws FieldNotFound, RejectLogon, Incorre
 
         // Check for proper sequence reset response
         if (state.isResetSent() && !state.isResetReceived()) {
-            disconnect("Received logon response before sending request", true);
+            if (resetOnLogon) {
+                disconnect("Expected Logon response to have reset sequence numbers in response to ResetSeqNumFlag", true);
+            } else {
+                disconnect("Received logon response before sending request", true);
+            }
         }
 
         state.setResetSent(false);