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/9040010.js

@@ -0,0 +1,47 @@
+/*
+	This file is part of the OdinMS Maple Story Server
+    Copyright (C) 2008 Patrick Huy <patrick.huy@frz.cc>
+		       Matthias Butz <matze@odinms.de>
+		       Jan Christian Meyer <vimes@odinms.de>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as
+    published by the Free Software Foundation version 3 as published by
+    the Free Software Foundation. You may not use, modify or distribute
+    this program under any other version of the GNU Affero General Public
+    License.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+function start() {
+    var eim = cm.getPlayer().getEventInstance();
+    if (eim != null) {
+        if (eim.getProperty("leader").equals(cm.getPlayer().getName())) {
+            if (cm.haveItem(4001024)) {
+                cm.removeAll(4001024);
+                var prev = eim.setProperty("bossclear","true",true);
+                if (prev == null) {
+                    var start = parseInt(eim.getProperty("entryTimestamp"));
+                    var diff = Packages.java.lang.System.currentTimeMillis() - start;
+                    var points = 1000 - Math.floor(diff / (100 * 60));
+					if(points < 100)
+						points = 100;
+                    cm.getGuild().gainGP(points);
+                }
+                eim.clearPQ();
+            }
+            else {
+                cm.sendOk("This is your final challenge. Defeat the evil lurking within the Rubian and return it to me. That is all.");
+            }
+        }
+    }
+    else
+        cm.warp(990001100);
+    cm.dispose();
+}