[Dovecot] mbox to maildir conversion

[Brian Wilson]

After experimenting with convert-tool it appears to
rename the mail/ directory to mail-converted/ and do nothing else.

Command I used:

  convert-tool testtest mbox:/home/testtest:INBOX=/var/spool/mail/testtest\
maildir:/var/mail/t/testtest/Maildir/

I have dovecot running already in a test config and I can see the 
account's folders correctly in squirrelmail. All the files and
folders seem okay there.

A 'verbose' option for convert-tool would be highly useful...

Brian