Exp gain & Chaos scroll fix + Diet's MK Overhaul

Fixed issues with negative experience being distributed to characters
when killing a mob, rendering "Exp reset". Fixed chaos scroll behaving
oddly. Refactored debuff expirations to manage one list with registered
debuffs and expire times, thus lifting some load from the TimerManager.
Added concurrency protection on how World deals with parties. Thanks to
the DietStory dev team, fixed some issues with the MK maps.

wz/Quest.wz/Check.img.xml

@@ -25248,6 +25248,7 @@
     </imgdir>
     <imgdir name="1">
       <int name="npc" value="1052120"/>
+      <string name="endscript" value="q2293e"/>
     </imgdir>
   </imgdir>
   <imgdir name="2300">
@@ -25960,13 +25961,6 @@
     <imgdir name="1">
       <int name="npc" value="1300002"/>
       <string name="endscript" value="q2332e"/>
-      <int name="infoNumber" value="2332"/>
-      <imgdir name="infoex">
-        <imgdir name="0">
-          <string name="value" value="1"/>
-          <int name="cond" value="1"/>
-        </imgdir>
-      </imgdir>
     </imgdir>
     <imgdir name="0">
       <int name="npc" value="1300002"/>

wz/Quest.wz/Say.img.xml

@@ -12772,6 +12772,7 @@
     <imgdir name="0">
     </imgdir>
     <imgdir name="1">
+      <string name="0" value="I am ready to leave! Thank you so much, I will never forget what you&apos;ve done for me!"/>
     </imgdir>
   </imgdir>
   <imgdir name="2334">

wz/Sound.wz/Field.img.xml

@@ -76,4 +76,7 @@
     <sound name="8"/>
     <sound name="9"/>
   </imgdir>
+  <imgdir name="quest2293">
+    <sound name="Die"/>
+  </imgdir>
 </imgdir>