rnd-20070414-2-src

rnd-20070414-2-src
* added additional configuration directives to define main menu buttons:
  - menu.button_name	and menu.button_name.active
  - menu.button_levels	and menu.button_levels.active
  - menu.button_scores	and menu.button_scores.active
  - menu.button_editor	and menu.button_editor.active
  - menu.button_info	and menu.button_info.active
  - menu.button_game	and menu.button_game.active
  - menu.button_setup	and menu.button_setup.active
  - menu.button_quit	and menu.button_quit.active