TODO
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- Menu configuration by OS directory hierarchy.
- Use keysym instead of keycode?
- Supports compressed image file.
- Not process AnimImage when it is hidden.
- Allows to place windows so that they do not overlap shortcut icons.
  (smart placement)
- Supports the launcher of the taskbar like Windows 98.
- Allows to complement ~ in command line arguments of external commands.
- Supports step paging.
- Places transient windows in the current page necessarily.(option?)
- Rewrites using libqv.
- Supports mouse button configuration. 
- Supports RaiseLower in fvwm. 
- Supports an internal function to move a mouse cursor. 
- Allows to display 'Alt + F4', etc. in the right of a menu. 
- Allows to define an application property at one place. 
- Closes a control menu when a mouse button is released outside the menu
  after the menu is opened. 
- Allows to change the property of a shortcut icon. 
- Disables to switch virtual pages in some directions. 
- Makes a menu 2 rows when there are many menu items. 
- Makes More light. 

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Translated partially by Yukihiro Nakai <Nakai@Mlab.t.u-tokyo.ac.jp>