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

By: Nathan Adams <dinnerbone@dinnerbone.com>

paper-api/src/main/java/org/bukkit/event/EventHandler.java

@@ -0,0 +1,15 @@
+package org.bukkit.event;
+
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+
+/**
+ * An annotation to mark methods as being event handler methods
+ */
+@Retention(RetentionPolicy.RUNTIME)
+public @interface EventHandler {
+
+    Class<? extends Event> event();
+
+    EventPriority priority();
+}