Disclaimer text is absent in WHOIS record of blocked and reserved domains

[artur-intech]

May require rest-whois changes (check that once registry creates disclaimer key, it is visible in HTML version).

Given eis.ee displays some custom disclaimer, I don't see a reason why disclaimer key is present in JSON version in rest-whois.
https://github.com/internetee/rest-whois/blob/b293bef88d5b43e995ed4ce54f550279bb81abb1/app/views/whois_records/show.json.jbuilder#L1

Also I think it's worth making some global config for this text (in WHOIS db). Currently it is created for each WHOIS record. Or actually make it configurable on in rest-whois. Registry itself has nothing to do with it.