Fixed the version that crashed, and some other comparatively minor bugs.

I'm extremely sorry that the version I published had those crashes, that was total carelessness on my part. The new version, 1-0-1, should be functional, along with some minor bugfixes to the classroom (the globe and the chemistry set were swapped for some reason) and the elevator, which is now works as you'd expect (can't go to rooms that don't exist yet, only goes between pool and west stairwell.)