Improving download speed

After yet another report of poor download performance from static.rlo, I went ahead and turned on all the edge nodes in our CDN. This means that no matter where in the world you are you should have the fastest possible access to Rust downloads (both static.rlo and www.rlo).

I don't know if I'm going to keep them turned on - for now I'm just testing. If you have previously noticed bad download performance please see if anything has improved for you.