Added various 1.6 portal events.

src/main/java/org/bukkit/event/world/PortalCreateEvent.java

@@ -0,0 +1,43 @@
+package org.bukkit.event.world;
+
+import org.bukkit.block.Block;
+import org.bukkit.World;
+import org.bukkit.event.Cancellable;
+import java.util.ArrayList;
+
+/**
+ * Called when the world attempts to create a matching end to a portal
+ */
+public class PortalCreateEvent extends WorldEvent implements Cancellable {
+    private boolean cancel = false;
+    private ArrayList<Block> blocks = new ArrayList<Block>();
+
+    public PortalCreateEvent(final ArrayList<Block> blocks, final World world) {
+        super(Type.PORTAL_CREATE, world);
+        this.blocks = blocks;
+    }
+
+    public ArrayList<Block> getBlocks(){
+        return this.blocks;
+    }
+
+    /**
+     * Gets the cancellation state of this event. A canceled event will not
+     * be executed in the server, but will still pass to other plugins
+     *
+     * @return true if this event is canceled
+     */
+    public boolean isCancelled() {
+        return cancel;
+    }
+
+    /**
+     * Sets the cancellation state of this event. A canceled event will not
+     * be executed in the server, but will still pass to other plugins
+     *
+     * @param cancel true if you wish to cancel this event
+     */
+    public void setCancelled(boolean cancel) {
+        this.cancel = cancel;
+    }
+}

src/main/java/org/bukkit/event/world/WorldListener.java

@@ -29,6 +29,13 @@ public class WorldListener implements Listener {
      */
     public void onSpawnChange(SpawnChangeEvent event) {}
 
+    /**
+     * Called when the world generates a portal end point
+     *
+     * @param event Relevant event details
+     */
+    public void onPortalCreate(PortalCreateEvent event) {}
+
     /**
      * Called when a world is saved
      *