mirror.ets.kth.se should be taken out of the list of mirrors; it seems
completely broken at the moment (almost everything 404s).
$ curl -I
http://ppa2.quickbuild.pearsoncomputing.net/redirect.php?file=trinity-build…
HTTP/1.1 301 Moved Permanently
Location:
http://mirror.ets.kth.se/trinity/trinity-builddeps-v3.5.13/
$ curl -I
http://mirror.ets.kth.se/trinity/trinity-builddeps-v3.5.13/
HTTP/1.1 404 file does not exist
Server: publicfile
Date: Tue, 27 Dec 2011 11:32:37 GMT
Content-Length: 47
Connection: close
Content-Type: text/html