26 May 2012
-ensure getmail exits nonzero if various error conditions (like POP/IMAP
authentication failure) occur. Thanks: Ryan J., Stephan Schulz.
-python versions prior to 2.5.0 contain a bug when dealing with read-only
IMAP mailboxes. Monkey-patch imaplib when running with Python<2.5.0.
Thanks: Les Barstow.
-do IMAP modified-utf7 conversion of mailbox names containing non-ASCII
characters. Thanks: A. Lapraitis, Randall Mason.
-add special ALL value for retrieving mail from all selectable IMAP
mailboxes in the account.
-change IMAP retrieval strategy to retrieve all messages from a mailbox,
then move on to the next mailbox, etc. Should result in increased speed,
but if you set `max_messages_per_session` too low, this could result in
later mailboxes not being retrieved from.