* Make sure that every package in all-packages.nix has a unique name.
Not all of them do, but there are now a few helper functions that
modify the name of a package for display purposes in nix-env (e.g.,
you get "zlib-1.2.3" and "zlib-1.2.3-static" in "nix-env -qa").
svn path=/nixpkgs/trunk/; revision=8607