Comment 17 for bug 1121982

Yeah, most of the comments were meant toward SirVer :)

Well, there's already python code to read and change conf files in crop_animation.py, so reusing that, I think it shouldn't be too hard to make the script change the conf file itself automatically. I'm probably going to be a bit more busy too from now on, but I know python, so I'll try to look into it this week maybe.