NetDB: Query connected peers for their RI directly

Negative cache router hash when expiring RI
Log tweaks

core/java/src/net/i2p/util/ObjectCounter.java

@@ -34,6 +34,14 @@ public class ObjectCounter<K> implements Serializable {
         return 1;
     }
 
+    /**
+     *  Set a high value
+     *  @since 0.9.56
+     */
+    public void max(K h) {
+        map.put(h, new AtomicInteger(Integer.MAX_VALUE / 2));
+    }
+
     /**
      *  @return current count
      */