Downloads Page

There are still a few things left from comments on #1 that need to be addressed. I'll probably add commits here...

I have deleted my fork, so all changes are now live at: http://musicbrainz.github.io/picard-website/
The spaces were not intentional, as they hardly serve a purpose here. The funny thing is, I'm not even sure why I did that. Anyway, I'll remove them in the next commit.