Buff System & Map skipping fix + properly disposing Storage + Fairness to locks

Fixed buff system behaving oddly if a buff has value zero, that would render some skills "broken".
Fixed players skipping maps when trying to access portals while under a poor Internet connection.
Fixed storage not disposing players properly in cases where the players does not meet the storage conditions.
Set some locks to use fairness strategy when dealing with atomic code, in order to make the calls to it properly synchronized.
Fixed Aran introductory questline stucking players when certain conditions were met.
Added drop data for some mob versions of Fairy, Yeti and Pepe.

scripts/quest/21712.js

@@ -1,6 +1,11 @@
 var status = -1;
 
 function start(mode, type, selection) {
+    if(mode == -1 || mode == 0 && type > 0) {
+        qm.dispose();
+        return;
+    }
+        
     if (mode == 1) {
 	status++;
     } else {
@@ -19,7 +24,7 @@ function start(mode, type, selection) {
 	qm.forceStartQuest();
 	qm.sendNext("I wonder what triggered this in the first place. There is no way this puppet was naturally created, which means someone planned this. I should keep an eye on the #o1210102#s.", 9);
     } else if (status == 3) {
-	qm.sendPrev("#b(You were able to find out what caused the changes in the #o1210102#s. You should report to #p1002104# and deliver the information you''ve gathered.)#k", 2);
+	qm.sendPrev("#b(You were able to find out what caused the changes in the #o1210102#s. You should report to #p1002104# and deliver the information you've gathered.)#k", 2);
 	qm.dispose();
     }
 }