Subdomains directory

[todx]

Would be nice to have a subdomains directory when people login to their site via ftp.

In addition to that the Subdomains item in menu under Sites, should be a bit more simple... only two options:
1. use a subdomain (no redirection) - this option should automatically create a subdomain directory with the name provided and auto-created vhost for the subdomain and auto-create dns entry (CNAME) with the name of the subdomain redirected to `domain.com` --- plesk like subdomain creation
2. redirect to another url