* --joystick-buttons-ignore option can be used to ignore joystick buttons

(rather than all non-command-assigned buttons being used asi
  left-mouse-click)
 * Updated docs re: joysticks a bit.

src/parse.h

@@ -80,6 +80,7 @@ struct cfginfo
   const char *joystick_button_save;
   const char *joystick_button_pagesetup;
   const char *joystick_button_print;
+  const char *joystick_buttons_ignore;
 
 };