Teach MinecraftServer how to handle Remote Console commands.

This fixes BUKKIT-220. Thanks for the help bawoodruff!

src/main/java/org/bukkit/craftbukkit/command/CraftRemoteConsoleCommandSender.java

@@ -0,0 +1,26 @@
+package org.bukkit.craftbukkit.command;
+
+import net.minecraft.server.RemoteControlCommandListener;
+import org.bukkit.command.RemoteConsoleCommandSender;
+
+public class CraftRemoteConsoleCommandSender extends ServerCommandSender implements RemoteConsoleCommandSender {
+    public CraftRemoteConsoleCommandSender() {
+        super();
+    }
+
+    public void sendMessage(String message) {
+        RemoteControlCommandListener.a.sendMessage(message);
+    }
+
+    public String getName() {
+        return "Rcon";
+    }
+
+    public boolean isOp() {
+        return true;
+    }
+
+    public void setOp(boolean value) {
+        throw new UnsupportedOperationException("Cannot change operator status of remote controller.");
+    }
+}