Variations on Rockdodger 0.5

Variations on Rockdodger (VoR) is a quick little game where you guide a space-ship through an asteroid field.
Note: This is a fairly hard game, intended to be a quickie game for when you want to kill a few spare minutes. For reference, my best time [Josh Grams] is about 2 minutes in version 0.3. Im not generally very good at video games, but I have been playing this one for quite a while now. However, you can make it substantially easier by slowing the game down. New in version 0.3, we have a command-line option --game-speed=N%. New players may like to try it at 0.75 or even 0.66.
Enhancements:
- This release fixes some rounding bugs which caused crashes on x86
- changes to a ray-traced font
- tweaks the engines and explosions.