[Yum] new repositories @mirror.dulug.duke.edu

[skvidal@xxxxxxxxxxxx (seth vidal)]

Hi everyone,
 I've setup rhl 7.1 and 7.2 stock and update/errata repositories at
mirror.dulug.duke.edu

Check out http://www.dulug.duke.edu/yum/yum-repo.html for more
information.

I was worried about space before until I remembered to use -l to
yum-arch - now I only have to make a few symlinks and it works just
fine.

Let me know if it breaks.

-sv