NCI-Agency/anet#1599: Do not allow super-users to edit location name
NCI-Agency/anet#1599: Do not allow super-users to edit location name

Super users are arbitrarily renaming locations, we therefore only allow
renaming to be done by admins.

NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet,NCI-Agency/anet