Try to update a little the section on what ports/rpms/etc are needed on a new client.  Mostly replace talk of elvin with that of pubsub.
Try to update a little the section on what ports/rpms/etc are needed on
a new client.  Mostly replace talk of elvin with that of pubsub.

nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome,nmc-probe/emulab-nome