Experimental DB pool + fixed stat overflow on equips

Implemented EXPERIMENTAL DBCP (connection pool), trying to improve
concorrent access to DB. Added door portals on Kerning Square. Fixed
equipments getting stat overflow when upgrading stats. Fixed expiring
pets crashing the client in some cases.

scripts/quest/2230.js

@@ -53,10 +53,16 @@ function end(mode, type, selection) {
     if (mode == -1) {
         qm.dispose();
     } else {
+        if (mode == 0 && type > 0) {
+            qm.dispose();
+            return;
+        }
+        
         if (mode == 1)
             status++;
         else
             status--;
+        
         if (status == 0)
             qm.sendSimple("Hello, traveler... You have finally come to see me. Have you fulfilled your duties? \r\n #b#L0#What duties? Who are you?#l#k");
         else if (selection == 0 && status == 1) {
@@ -70,7 +76,7 @@ function end(mode, type, selection) {
         } else if (status == 5) {
             qm.sendYesNo("Now do you understand? Every action comes with consequences, and pets are no exception. The egg of the snail shall hatch soon.");
         } else if (status == 6) {
-            qm.gainItem(5000054, 1, false, true, 5 * 60 * 60 * 1000);  // rune snail (5hrs)
+            qm.gainItem(5000054, 1, false, true, 5 * 1000);  // rune snail (5hrs)
             
             qm.gainItem(4032086, -1); // Mysterious Egg * -1
             qm.forceCompleteQuest();