Update or add rack OF aggregate nicknames.
Update or add rack OF aggregate nicknames.

Add gpo-eg-of, gpo-ig-of, kettering-ig-of, northwestern-ig-of,
renci-eg-of, uky-ig-of, utahddc-ig-of, and utah-ig-of.

ahelsing/geni-tools,tcmitchell/geni-tools,plantigrade/geni-tools,plantigrade/geni-tools,ahelsing/geni-tools,tcmitchell/geni-tools