Assignment 4

Finally remembered where to put the file, so this one is even more late
than the webCT one, which I actually started uploading before 12:00.
Controls: A and D to drive, Space to fly, try and collect the lights,
and avoid the spiky balls!
Final Project

Here it is! All done, and hopefully submitted correctly. It should run
on any computer unless it doesn't have controlP5, or maybe if it has an
older version of Processing, because I think I used some of the new
stuff.
Merge pull request #2 from tedmunds/master

Assignment 4 added, finally