Allow reseller to change domain IP

Hi nuxwin,

This is not yet completed, because I have 2 questions:
1. Do we need to make any checks on the selected IP (in reseller_checkAndUpdateData)?
2. I see there also is a domain_edit.php for admins, but the edit button is not shown. From the code it looks like it is linked somehow to hosting plans, but I am unable to get this domain edit button for admins. Perhaps you can give me a hint, so I can also adjust the admin domain_edit.php