ports/mail/vm-pop3d + $HOME/Mailbox patch

This is first version of this patch, it may occur to be buggy, but I hope it
will work just fine for you.

Usage:
# cd /usr/ports/mail/vm-pop3d
# fetch http://pyzmen.kam.pl/dev/vm-pop3d-Mailbox.patch.gz
# gunzip vm-pop3d-Mailbox.patch.gz
# patch -p1 < vm-pop3d-Mailbox.patch
# make MAILBOX_HOME=yes all install clean

If you find this patch crashing, let me know <pyzmen*at*kam*dot*pl>