Horntail PQ & Exped + Equip levelup fix

Added Horntail PQ and boss fight. Fixed short integer overflow of
equipment stats on client messing up player stats.

scripts/npc/9000017.js

@@ -2,7 +2,7 @@
         Refining NPC: 
 	* Chaos scroll SYNTHETIZER (rofl)
         * 
-        * By RonanLana
+        * @author RonanLana
 */
 
 var status = 0;