re-IP the `utah.cloudlab.us` space
With the addition of Phase III, we are almost out of IPv4 addresses in 128.110.152.0/22.
@ricci requested and received a new /21, 128.110.216.0/21 with the promise that we will return the old IP space within a month. Well, that was more than a month ago, so we (@stoller and @hibler in particular) need to get crackin' with the move.