2004-01-17 agranig:
  * Finish player configuration.
  * Render better graphics for the grinder.
  * Implement drones (like grinders, but they can shoot and can be destroyed)
    and render some graphics for it.

2004-02-05 btrummer:
  * Find out, why scrolling the playground raises the CPU usage to 100%
    on some systems.

2004-02-29 btrummer:
  * Write some more in-game mod-files.
  * Write three short highscore mod-files (first place, made an entry,
    not enough scores for an entry).
  * Find a sample for crate pickups.
  * Find a sample for SAMBattery missile launches.

2004-03-23 btrummer:
  * Implement a "Fuel" crate, filling up the player's fuel to the initial
    amount, when picked up. Draw a tutorial level for this.

2004-04-03 btrummer:
  * Implement "bonus" crates, increasing the player's score on pickup.
