Added check that the record's name is within the current zone.
Added check that the record's name is within the current zone.

d9pouces/django-powerdns-manager,d9pouces/django-powerdns-manager,gnotaras/django-powerdns-manager,gnotaras/django-powerdns-manager,kumina/django-powerdns-manager,kumina/django-powerdns-manager