Hosting Subdirectory

This is a rather hackish module that duck tapes sub-directory site support onto Aegir. It was a first Aegir module and hasn't been revisited much. We're using it in production, but I'd not recommend it to others and we try to steer people away from this.

Subdirectory sites must exist on the same server as parent. When sub-directory is migrated, parent must be manually verified. In our use, we give every site a real domain, and then make the subdirectory an alias.

Caveat: Aegir removes the username/password from settings.php instead adding it to the vhost file. This adds it back in (because only the parent's vhost file is loaded, not the subdirectory site's).