Concurrency fix + new scripts

Fixed some situation involving concurrency upon using getCharacters()
from MapleMap, added scripts and other bug fixes.

scripts/npc/world0/1061016.js

@@ -0,0 +1,34 @@
+var status = -1;
+var itemids = Array(2040728, 2040729, 2040730, 2040731, 2040732, 2040733, 2040734, 2040735, 2040736, 2040737, 2040738, 2040739);
+
+function start() {
+	action(1, 0, 0);
+}
+
+function action(mode, type, selection) {
+	if (mode != 1) {
+		cm.dispose();
+		return;
+	}
+	status++;
+	if (status == 0) {
+		cm.sendSimple("Hello, #h0#. I can exchange your Balrog Leathers.\r\n\r\n#r#L1#Redeem items#l#k");
+	} else if (status == 1) {
+		var selStr = "Well, okay. These are what you can redeem...\r\n\r\n#b";
+		for (var i = 0; i < itemids.length; i++) {
+			selStr += "#L" + i + "##i" + itemids[i] + "##z" + itemids[i] + "##l\r\n";
+		}
+		cm.sendSimple(selStr);
+	} else if (status == 2) {
+		if (!cm.canHold(itemids[selection], 1)) {
+			cm.sendOk("Please make room");
+		} else if (cm.itemQuantity(4001261) < 1) {
+			cm.sendOk("You don't have enough leathers.");
+		} else {
+			cm.gainItem(4001261, -1);
+			cm.gainItem(itemids[selection], 1);
+			cm.sendOk("Thank you for your redemption");
+		}
+		cm.dispose();
+	}
+}