Comment 5 for bug 276488

There are some names that really cannot be overridden. There are some that
admins do need to change. There are other that commericial or registy
admins could be trusted to use. We need a way to define who can override
blacklisted name.

jml and sinzui discussed the issue and decided that the blacklist admin
views should permit admins to specify the team that can override the
namebacklist. When the team is None, the nameblacklist cannot be overridden.