working implementation: xkcd random comic

[Lewiscowles1986]

This adjusts the xkcd to use their current random xkcd url (taken from their site and the "Random" button.

I've tested it and instead of getting some numenor joke over and over and over. I now get a new comic every time I run or this updates. I think that (and your script) are pretty cool.

[Evidlo]

The current behavior is to fetch the most recent comic, not a random one.

If you want random behavior it should be in a separate service.

[Lewiscowles1986]

But the most recent, doesn't cycle ever 3600 seconds. It's a daily comic...