rename and delete operations didn't touch control directory if it was different from maildir or index dir.
rename and delete operations didn't touch control directory if it was
different from maildir or index dir.

--HG--
branch : HEAD

dscho/dovecot,dscho/dovecot,dscho/dovecot,jwm/dovecot-notmuch,jwm/dovecot-notmuch,jkerihuel/dovecot,jkerihuel/dovecot,dscho/dovecot,jkerihuel/dovecot,jwm/dovecot-notmuch,jkerihuel/dovecot,jwm/dovecot-notmuch,dscho/dovecot,jkerihuel/dovecot,jwm/dovecot-notmuch