1.0.1
-Different screenmodes
-Bug fixes and some tweaking here and there
-Accelerated time

1.0.2
-Fixed screenmode problems with Matrox graphics adapter cards (hopefully
 also with ET6000 based cards)
-Added -bgdarken option: Applies extra darken to background images
 (useful if you find boundaries between land and space unclear)
-Fixed bug where invulnerability could be obtained when changing weapon
 while shielded
-Fixed Joystick problems while changing keys
-Added -doublescanline option: Uses double scan line (only every other
 line is drawn). Should make the game run faster. Unfortunately causes
 some problems with menus.
