Polytechnic update

Finally got round to updating to Drupal 5.1. I've done some pretty thorough testing and it all looks good, but if you notice anything strange please leave me a comment (which are no longer moderated, thanks to the new captcha, we'll see how long that lasts).

Now that I'm up to date expect to see some changes in the near future. There's a new theme in the works and some toys that I've been wanting to roll out, but could only do on 5.x

Caveat: The appearance of said theme and toys depends wholly on how much free time I have in the next few months.