FS-3841 --resolve ok return the string "die" or "exit" from hanguphook to cause an error or call s:destroy("any err message"); either should now halt the script

src/mod/languages/mod_lua/freeswitch.i

@@ -59,7 +59,7 @@ class Session : public CoreSession {
     Session(char *uuid, CoreSession *a_leg = NULL);
     Session(switch_core_session_t *session);
     ~Session();        
-	virtual void destroy(void);
+	virtual void destroy(const char *err = NULL);
 	
 	virtual bool begin_allow_threads();
 	virtual bool end_allow_threads();