clean up warnings

src/main/java/com/google/code/gossip/GossipMember.java

@@ -19,9 +19,6 @@ package com.google.code.gossip;
 
 import java.net.InetSocketAddress;
 
-import org.json.JSONException;
-import org.json.JSONObject;
-
 /**
  * A abstract class representing a gossip member.
  * 

src/main/java/com/google/code/gossip/event/GossipState.java

@@ -19,6 +19,7 @@ package com.google.code.gossip.event;
 
 public enum GossipState {
   UP("up"), DOWN("down");
+  @SuppressWarnings("unused")
   private final String state;
 
   private GossipState(String state) {