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.

wz/Item.wz/Etc/0400.img.xml

@@ -7126,8 +7126,7 @@
         <int name="z" value="0"/>
       </canvas>
       <int name="price" value="1"/>
-      <int name="quest" value="1"/>
-      <int name="tradeBlock" value="1"/>
+      <int name="only" value="1"/>
     </imgdir>
   </imgdir>
   <imgdir name="04001095">