Multi World NPCs + patch on Player interactions

Made NPCs now work properly on multiworld system. Solved multiple issues
regarding Player Shops not giving back items properly when owner exits.
Added restriction on changing channels at FM rooms, preventing shop
owner entering Cash Shop.

scripts/npc/1052006.js

@@ -0,0 +1,43 @@
+var status = -1;
+var zones = 0;
+var cost = 1000;
+
+function start() {
+    cm.sendNext("Hi, I'm the ticket salesman.");
+    if (cm.isQuestStarted(2055) || cm.isQuestCompleted(2055))
+        zones++;
+    if (cm.isQuestStarted(2056) || cm.isQuestCompleted(2056))
+        zones++;
+    if (cm.isQuestStarted(2057) || cm.isQuestCompleted(2057))
+        zones++;
+}
+
+function action(mode, type, selection) {
+    status++;
+    if (mode != 1){
+        cm.dispose();
+        return;
+    }
+    if (status == 0) {
+        if (zones == 0)
+            cm.dispose();
+        else {
+            var selStr = "Which ticket would you like?#b";
+            for (var i = 0; i < zones; i++)
+                selStr += "\r\n#L" + i + "#Construction site B" + (i+1) + " (" + cost + " mesos)#l";
+            cm.sendSimple(selStr);
+        }
+    } else if (status == 1) {
+        if (cm.getMeso() < cost)
+            cm.sendOk("You do not have enough mesos.");
+        else {
+            cm.gainMeso(-cost);
+			if(selection < 0 || selection > zones) {
+				cm.getClient().disconnect(false, false);
+				return;
+			}
+            cm.gainItem(4031036 + selection,1);
+        }
+        cm.dispose();
+    }
+}