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/1200005.js

@@ -0,0 +1,15 @@
+/**
+----------------------------------------------------------------------------------
+	Whale Between Lith harbor and Rien.
+
+	1200005 Puro
+
+-------Credits:-------------------------------------------------------------------
+	*MapleSanta 
+----------------------------------------------------------------------------------
+**/
+
+function start() {
+	cm.sendOk("Ahhhh, this is so boring... The whale is controlling the ship so i'm left with nothing to do but look up and stare at the clouds.");
+	cm.dispose()
+}