Fix subclass inclusion in EventBus

src/main/java/envoy/event/EventBus.java

@@ -66,7 +66,12 @@ public class EventBus {
 	 * @since Envoy v0.2-alpha
 	 */
 	public void dispatch(Event<?> event) {
-		handlers.keySet().stream().filter(event.getClass()::isAssignableFrom).map(handlers::get).flatMap(List::stream).forEach(h -> h.accept(event));
+		handlers.keySet()
+			.stream()
+			.filter(event.getClass()::equals)
+			.map(handlers::get)
+			.flatMap(List::stream)
+			.forEach(h -> h.accept(event));
 	}
 
 	/**