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/1061012.js

@@ -0,0 +1,64 @@
+/*
+	NPC Name: 		Insiginificant Being
+	Map(s): 		Dungeon : Another Entrance
+	Description: 		Takes you to another Dimension
+*/
+
+function start() {
+    if (cm.getQuestStatus(6108) == 1) {
+	var ret = checkJob();
+	if (ret == -1) {
+	    cm.sendOk("Please form a party and talk to me again.");
+	} else if (ret == 0) {
+	    cm.sendOk("Please make sure that your party is a size of 2.");
+	} else if (ret == 1) {
+	    cm.sendOk("One of your party member's job is not eligible for entering the other world.");
+	} else if (ret == 2) {
+	    cm.sendOk("One of your party member's level is not eligible for entering the other world.");
+	} else {
+	    var em = cm.getEventManager("s4aWorld");
+	    if (em == null) {
+		cm.sendOk("You're not allowed to enter with unknown reason. Try again." );
+	    } else if (em.getProperty("started").equals("true")) {
+		cm.sendOk("Someone else is already attempting to defeat the Jr.Balrog in another world." );
+	    } else {
+		if(!em.startInstance(cm.getParty(), cm.getMap())) {
+                    cm.sendOk("A party in your name is already registered in this event.");
+                }
+	    }
+	}
+    }
+    else {
+        cm.sendOk("You're not allowed to enter the other world with unknown reason.");
+    }
+    
+    cm.dispose();
+}
+
+function action(mode, type, selection) {
+}
+
+function checkJob() {
+    var party = cm.getParty();
+
+    if (party == null) {
+	return -1;
+    }
+    //    if (party.getMembers().size() != 2) {
+    //	return 0;
+    //    }
+    var it = party.getMembers().iterator();
+
+    while (it.hasNext()) {
+	var cPlayer = it.next();
+
+	if (cPlayer.getJobId() == 312 || cPlayer.getJobId() == 322 || cPlayer.getJobId() == 900) {
+	    if (cPlayer.getLevel() < 120) {
+		return 2;
+	    }
+	} else {
+	    return 1;
+	}
+    }
+    return 3;
+}