[Katello] Nightly Upgrading to 2.4

Hello All,

We are currently in the process of upgrading to pulp 2.4 within the
nightly repositories. The nightlies will probably be broken for the
next 4 hours or so. I'll send an email once we are complete and have
confirmed the nightlies are working again with instructions on updating
your development environment. Due to all the dependencies related with
a full pulp upgrade (runcible, katello-agent, intstaller, etc…) we are
not able to do this without some disruption to nightly.