No engine updates this week - I've been busy mapping

This week I finally came up against the dreaded clipnode limit, requiring me to add a hack to tyr-qbsp to properly handle the (short) integer wrap around. Somewhat disappointingly, this now means that I can't test my map in my own engine until I make the necessary changes there as well. Luckily, Bengt's engine can already handle this, so I don't have to stop mapping to fix it up - I can just use his and fix mine later.