Get up2date errata for all RH distros

Brian Long has submitted a patch to Red Hat’s product marketing group that enables a single machine to pull down RHN updates for multiple RHEL releases across multiple platforms. Methinks this is a great idea, and it allows one server to grab all the updates for any RH version. Since we run 2.1 and 4.x (both Intel and AMD), this makes creating a patch repository much easier.