New PQ: Boss Rush PQ + Ellin/PiratePQ bug fixes

Introducing Boss Rush PQ. Corrected a few issues regarding rewardings in
PiratePQ and EllinPQ and implemented a standardized way to script PQs.

src/scripting/npc/NPCConversationManager.java

@@ -218,7 +218,7 @@ public class NPCConversationManager extends AbstractPlayerInteraction {
                         ex.printStackTrace();
 		}
 	}
-
+        
 	public int getMeso() {
 		return getPlayer().getMeso();
 	}