Startmenu and gameEnd menu is now using screen width and height to resolution into account.
HS: highscores now shows, but GUI draws before the list is ready, hence only shows the list the second time - needs to be fixed.
Startmenu has buttons and background in place. Background resource is dummy. Startmenu needs an instance of the Player class or to send the playername with the start button to relevant instance.
GameEnd needs an alternative solution to flashing "new personal best" text, or to be removed. (label should be a possible alternative)

If needed, make a guiskin for the buttons.
Refactor and send to review.