Added various 1.6 portal events.

src/main/java/org/bukkit/event/entity/EntityListener.java

@@ -26,6 +26,8 @@ public class EntityListener implements Listener {
 
     public void onEntityInteract(EntityInteractEvent event) {}
 
+    public void onEntityPortalEnter(EntityPortalEnterEvent event) {}
+
     public void onPaintingPlace(PaintingPlaceEvent event) {}
 
     public void onPaintingBreak(PaintingBreakEvent event) {}

src/main/java/org/bukkit/event/entity/EntityPortalEnterEvent.java

@@ -0,0 +1,26 @@
+package org.bukkit.event.entity;
+
+import org.bukkit.entity.Entity;
+import org.bukkit.Location;
+import org.bukkit.event.Cancellable;
+
+/**
+ * Stores data for entities standing inside a portal block
+ */
+public class EntityPortalEnterEvent extends EntityEvent {
+
+    private Location location;
+
+    public EntityPortalEnterEvent(Entity entity, Location location) {
+        super(Type.ENTITY_PORTAL_ENTER, entity);
+        this.location = location;
+    }
+
+    /*
+     * Gets the portal block the entity is touching
+     * @return The portal block the entity is touching
+     */
+    public Location getLocation() {
+        return location;
+    }
+}