As discussed on the mailing list, the url is now pointed at the github
project release because the previous eclipse archive link was not kept
up-to-date anymore.
Relevant links:
- https://www.eclipse.org/lists/aspectj-dev/msg03311.html
URLs to http://nix.cs.uu.nl/dist/tarballs. With content-addressable
mirror support (r9190, NIXPKGS-70) this is no longer necessary:
fetchurl will try to download from that location automatically. So
we can keep the original URLs.
svn path=/nixpkgs/trunk/; revision=9192
