28th April, 2014 - Release S4/1.02 (Standard 4, various optimizations)
Minor fixes and optimizations to source code; normalized sound samples volume
to a higher level; added the new "About" screen.

November 7th, 2011 - Release S4/1.01 (Standard 4, complete rewrite + manual
added)
Completely rewritten source code in order to do major optimizazions, fix bugs,
etc; designed new graphics; re-recorded sound samples at higher quality;
instructions manual browser added.
