Add a key (urn) to geni_authorities. Add a creator_urn slot to geni_slices.
Add a key (urn) to geni_authorities.
Add a creator_urn slot to geni_slices.

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