Remember to use the updated version of the precode!

Note that I've altered the precode for Oblig5 slightly from the version that was used last year and for my Oblig 5 demo from last week. If you started the oblig before today, please make sure to use the latest version of the precode, which is on my Github of course. The changes are detailed in comments, but aren't too substantial.

The sequential implementation has also been ever so slightly altered. Just one character in fact, if we're not counting comments.

- Kim