[Ietf-not43] Domain Registrant

[Andrew Newton]

As pointed out in Yokohama, the requirements document does not define a
domain registrant.  So are there any comments on adding the following
definition:

2.4.6 Domain Registrants
  Entities given authority over a domain via purchase, lease, or grant
from a domain registrar or domain registry are domain registrants. 
Domain registrants are considered a subset of both DNS Users (Section
2.4.5) and Intellectual Property Holders (Section 2.4.2).

-andy