Get it working when running via WSGI

[drkitty]

It's a bit messy, but it's the cleanest thing I could think of. To make things easier, I moved wsgi.py up a directory, so make sure you adjust the Apache config accordingly.

[akeym]

i don't even remember what this was for

[drkitty]

It lets you run arim regardless of your working directory. (Most I/O is handled through Django, which takes care of forming absolute paths for you, but there's one place we open files directly, and it didn't work if the working directory wasn't the project root.)

[drkitty]

The virtualenv bit is mostly for testing, and I seem to be the only one who used it.