Updated NEWS for 0.5.4 release

NEWS

-$Id: NEWS,v 1.38 2003/05/05 13:03:23 hartman Exp $
+$Id: NEWS,v 1.39 2003/05/05 13:15:06 titer Exp $
 
 Changes between 0.5.3 and 0.5.4:
 ---------------------------------
@@ -38,6 +38,12 @@ Mac OS X port:
 Win32 port:
  *
 
+BeOS port:
+ * Interface localization
+ * Screensaver disabled if playing in fullscreen
+ * A few new keyboard shortcuts
+ * New full-featured Preferences window
+
 iPAQ familiar Linux port:
  *