r5: 03/05/09
    * sounds updated
    * scripts updated to reflect sound changes
    * backgrounds to jpg

r4: xx/xx/xx
    * delays added
    * migrated to .mp3 

r3: 24/03/08:
    * thumbnail.png: added

sound: 21/03/08
    * fixed voices

r2: 19/03/08
    * changed all music to conform to 1.1.0

r1: 19/03/08
    * initial release