update -u option

[theycallmemac]

Scraping the timetable continuously is a pretty laborious task to keep repeating.

It would be much better to scrape the entire thing once, and have it exist as some kind of file somewhere on the machine.

I'm proposing an update option to the tool, expressed simply as dcurooms -u or dcurooms --update. One big scrape, no longer will you have to rely on your connect to eduroam or the likes apart from that one big scrape.

I've set this as a milestone for v3.0.0, because it's a huge change to the way in which this tool works.

[theycallmemac]

With the DCU timetable system experiencing some downtime recently, I've decided this needs to be a priority.

The idea of having to manually pull using a -u isn't the most appealing idea I've ever had. Nightly builds of the timetable would be better, with the -u existing still as an option.

Not really sure how to go about that though.