[Bleeding] Changed event system into a new, much faster design. Huge thanks to @zml2008 & @lahwran.

src/main/java/org/bukkit/event/weather/WeatherEvent.java

@@ -7,7 +7,7 @@ import org.bukkit.event.Event;
  * Represents a Weather-related event
  */
 @SuppressWarnings("serial")
-public class WeatherEvent extends Event {
+public abstract class WeatherEvent extends Event {
     protected World world;
 
     public WeatherEvent(final Event.Type type, final World where) {