option to add cname instead of a records automatically

[whitty]

The function to add dns records automatically when adding vhosts is nice, but it'd be nice to also have a switch between a and cname records during this addition. i'm on a dynamic ip (personal server, don't worry) and even if i use the proper public ip, there's no guarentee it won't change, whereas if all my records are cname, it will always be all set.

alex