Adds a dependency on python2-requests (which is okay i guess) and python-pyquery (which may not be ok) because i'm lazy to do proper DOM parsing and i don't know a better way to find a file in the same folder as some other file on a remote HTTP server.

I don't know Python very well so please feel free to fix my code.

I am in my parents house in a village with a pretty bad internet connection so it was slooooow and it seemed like the mirror i'm getting is broken. Hopefully this will be fine somewhere closer to the mirror.

Ricky mentioned he's been working on getting the release date so I left that alone so far.

Links to stuff it's been unable to fetch the data for are reported to stderr.

There is some junk in the diff I didn't cause. Sorry for that but this is my first pull request on Pagure and I thought I was doing the same thing as on Github.