14th April, 2014 - Release S4/1.04 (Standard 4, various optimizations)
Fixed a bug which prevented the "Readme" and "Whatsnew" files from being
opened in Windows 7+; minor fixes and optimizations to source code; normalized
sound samples volume to a higher level; added the new "About" screen.

December 20th, 2010 - Release S4/1.03 (Standard 4, English manual added)
English manual added.

January 15th, 2010 - Release S4/1.02 (Standard 4, complete rewrite + manual
added)
Completely rewritten source code in order to do major optimizazions, fix bugs,
etc; re-recorded original sound samples at higher quality; manual added;
source code released.

January 7th, 2008 - Release S4/1.01 (Standard 4, graphics improvement +
hiscore save fix)
Fixed a bug in the routine that saves hiscores to Windows registry; added
shadows to sprites to make them look more realistic.
