Changing inconsistent code

This is the only event which does not return a BukkitMC*Event instead it returned a Bukkit event. Which is no longer accepted.

src/main/java/com/laytonsmith/abstraction/bukkit/events/BukkitPlayerEvents.java

@@ -552,8 +552,8 @@ public void setJoinMessage(String message) {
 			pje.setJoinMessage(message);
 		}
 
-		public static PlayerJoinEvent _instantiate(MCPlayer player, String message) {
-			return new PlayerJoinEvent(((BukkitMCPlayer) player)._Player(), message);
+		public static BukkitMCPlayerJoinEvent _instantiate(MCPlayer player, String message) {
+			return new BukkitMCPlayerJoinEvent(new PlayerJoinEvent(((BukkitMCPlayer) player)._Player(), message));
 		}
 	}