change log

krank 07

each level comes in three flavors now: easy, hard and extreme
difficulty stages added to the level selection and score menus 
statistics added
configuration and highscores save now in ~/Library/Preferences
restart level shortcut ('r') added
speed optimized and various bug fixes

krank 06

menu sound themes added
screen menu for switching resolutions added
resolution selection changed
levels improved
bug fix: occasional jump to main menu on mac fixed

