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/9201093.js

@@ -0,0 +1,9 @@
+/**
+ *9201093 - Little Suzy
+ *@author Ronan
+ */
+ 
+function start() {
+    cm.sendOk("Have you heard the fantasic Jack Masque appeared around the city these days? That is sooooo nice!");
+    cm.dispose();
+}