1. Replaced the "computer skill" menu by a KGameDifficulty one. => Thus: more consistency between our KDE games and less text to translate for i18n teams.
2. For high scores, the game now takes the lowest difficulty level chosen during the game and not the current one anymore. No use anymore to change to level "Impossible" just before the last turn! ,o)

CCMAIL:dimsuz@gmail.com

svn path=/trunk/KDE/kdegames/kreversi/; revision=793724