Version 1.0 (20/04/2004):
        - first release

Version 1.1 (17/12/2004):
	- large files support
	- color palettes ( external )

Version 1.2 (27/12/2004):
	- OpenGL graphics
	- output to PS, EPS or PDF files

Version 1.3 (13/04/2008):
	- dynamic matrix monitoring
	- 3D view

Version 1.4 (3/10/2008):
	- fixed bugs in GUI