Log Message:
Update to 4.0.1.

Notable changes include:

* Dynamic loading now works on NetBSD ELF systems.
* Integration of SRFI-9 (records)
* Accepts mailto: links in the browser
* <Scroll-Frame>, <Toolbar> STklos classes.
* Integration of some finals SRFI (0, 2, 6, 8)
* define-syntax (but not let-syntax and let-syntax*)
* New License Policy (request for commercial apps no more needed).
* A console mode (which is used by default on Windows, but can
  be used with the -console option on Unix)
* A new editor with Scheme fontification and indentation
* New kind of ports: virtual ports
* All the code dealing with files has been rewritten.
* Tk level is 8.0.3 (the latest stable Tk release)
* New STklos Classes:
	+ <Hierarchy-tree> and <Hierarchy-item> to draw
	  hierarchy such as files/directories, class/metaclasses ...
	+ <Notepad> to define ... notepads
	+ <Scheme-text> which extends <Text> to "font-lockify"
	  Scheme buffers
* Method and generic function editor
* A class browser (type "(class-browser)" to access it)
* some new manual pages
* Base64 Encoding/Decoding extension
* Locale extension to treat strings and character using locale information
* Better installation scripts (+ some corrections)
* Lot of bug fixes.