Update for 1.1_01 renames.

We know these updates (can) break plugins bypassing Bukkit. They are needed for
smooth updates however. There will be another one right before before 1.1-R1.

src/main/java/net/minecraft/server/Packet3Chat.java

@@ -29,7 +29,7 @@ public class Packet3Chat extends Packet {
         a(this.message, dataoutputstream);
     }
 
-    public void a(NetHandler nethandler) {
+    public void handle(NetHandler nethandler) {
         nethandler.a(this);
     }