Increased maximum number of timers to 64;

Redid some things in serial_old.c;
Made win_serial.c only compile and link if make is started with WALTJE=y;
The NVR path text box in the Settings dialog now has ES_AUTOHSCROLL set.

src/pc.c

@@ -366,7 +366,9 @@ void initmodules(void)
 	/* Initialize modules. */
 	network_init();
         mouse_init();
+#ifdef WALTJE
 	serial_init();
+#endif
 	disc_random_init();
 
         joystick_init();