Added a toString() method to DisconnectInfo.

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@10836 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/networking/com/jme3/network/ClientStateListener.java

@@ -63,5 +63,10 @@ public interface ClientStateListener
     {
         public String reason;
         public Throwable error;
+        
+        @Override
+        public String toString() {
+            return "DisconnectInfo[" + reason + ", " + error + "]";
+        }
     }
 }