- Added two max() things to lighting code. This should stop the negative luminosity error, which happens when large explosions happen, resulting in a large blob of permanently black space. Space will be black now, but when you go through it with a flashlight, it will actually be illuminated properly.
git-svn-id: http://tgstation13.googlecode.com/svn/trunk@4232 316c924e-a436-60f5-8080-3fe189b3f50e