Add more api items

src/main/java/com/onarandombox/MultiverseCore/MultiverseCore.java

@@ -10,6 +10,7 @@ package com.onarandombox.MultiverseCore;
 import com.fernferret.allpay.AllPay;
 import com.fernferret.allpay.GenericBank;
 import com.onarandombox.MultiverseCore.api.LoggablePlugin;
+import com.onarandombox.MultiverseCore.api.MVPlugin;
 import com.onarandombox.MultiverseCore.commands.*;
 import com.onarandombox.MultiverseCore.configuration.DefaultConfig;
 import com.onarandombox.MultiverseCore.configuration.MVConfigMigrator;
@@ -41,7 +42,29 @@ import java.util.HashMap;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 
-public class MultiverseCore extends JavaPlugin implements LoggablePlugin {
+public class MultiverseCore extends JavaPlugin implements MVPlugin {
+
+    private static int Protocol = 1;
+
+    @Override
+    public String dumpVersionInfo(String buffer) {
+        // I'm kinda cheating on this one, since we call the init event.
+        return buffer;
+    }
+
+    @Override
+    public MultiverseCore getCore() {
+        return this;
+    }
+
+    @Override
+    public void setCore(MultiverseCore core) {
+
+    }
+
+    public int getProtocolVersion() {
+        return MultiverseCore.Protocol;
+    }
 
     // Useless stuff to keep us going.
     private static final Logger log = Logger.getLogger("Minecraft");

src/main/java/com/onarandombox/MultiverseCore/api/MVPlugin.java

@@ -32,4 +32,12 @@ public interface MVPlugin extends LoggablePlugin {
      * @param core A valid {@link MultiverseCore}.
      */
     public void setCore(MultiverseCore core);
+
+    /**
+     * Allows Multiverse or a plugin to query another Multiverse plugin to see what version its protocol is. This number
+     * should change when something will break the code.
+     *
+     * @return The Integer protocol version.
+     */
+    public int getProtocolVersion();
 }

src/main/java/com/onarandombox/MultiverseCore/listeners/MVPluginListener.java

@@ -9,6 +9,7 @@ package com.onarandombox.MultiverseCore.listeners;
 
 import com.fernferret.allpay.AllPay;
 import com.onarandombox.MultiverseCore.MultiverseCore;
+import com.onarandombox.MultiverseCore.api.MVPlugin;
 import org.bukkit.event.server.PluginDisableEvent;
 import org.bukkit.event.server.PluginEnableEvent;
 import org.bukkit.event.server.ServerListener;