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.

src/server/quest/MapleQuest.java

@@ -36,7 +36,6 @@ import provider.MapleDataProviderFactory;
 import provider.MapleDataTool;
 import server.quest.actions.*;
 import server.quest.requirements.*;
-import tools.FilePrinter;
 import tools.MaplePacketCreator;
 
 /**
@@ -113,8 +112,9 @@ public class MapleQuest {
             for (MapleData completeReq : completeReqData.getChildren()) {
 		MapleQuestRequirementType type = MapleQuestRequirementType.getByWZName(completeReq.getName());
                 MapleQuestRequirement req = this.getRequirement(type, completeReq);
-				if(req == null)
-					continue;
+                
+                if(req == null)
+                        continue;
 				
                 if (type.equals(MapleQuestRequirementType.INFO_NUMBER)) {
                     infoNumber = (short) MapleDataTool.getInt(completeReq, 0);
@@ -230,6 +230,9 @@ public class MapleQuest {
         }
         for (MapleQuestRequirement r : completeReqs.values()) {
             if (r == null || !r.check(c, npcid)) {
+                if(r.getType() == MapleQuestRequirementType.MESO) { // TODO: find a way to tell the client about the new MESO requirement type.
+                    c.dropMessage(5, "You don't have enough mesos to complete this quest.");
+                }
                 return false;
             }
         }
@@ -402,6 +405,9 @@ public class MapleQuest {
 			case MAX_LEVEL:
 				ret = new MaxLevelRequirement(this, data);
 				break;
+                        case MESO:
+				ret = new MesoRequirement(this, data);
+				break;
 			case MIN_LEVEL:
 				ret = new MinLevelRequirement(this, data);
 				break;