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/2007.js

@@ -0,0 +1,26 @@
+function start() {
+    status = -1;
+    action(1, 0, 0);
+}
+
+function action(mode, type, selection) {
+    if (mode == -1) {
+	cm.sendNext("Enjoy your trip.");
+        cm.dispose();
+    } else {
+        if (status == 0 && mode == 0) {
+		cm.sendNext("Enjoy your trip.");
+		cm.dispose();
+        }
+        if (mode == 1)
+            status++;
+        else
+            status--;
+        if (status == 0) 
+			cm.sendYesNo("Would you like to skip the tutorials and head straight to Lith Harbor?");
+	else if (status == 1){
+			cm.warp(104000000);
+			cm.dispose();
+		}
+	}
+}