sync_mailbox() didn't consider MaxSize == 0 to mean "unlimited". load_config() needs to print a newline in its error messages since next_arg() kills the newline of the line that was read out of the config file.
added support for uploading local messages with no UID to the IMAP server added Expunge configuration option added CopyDeletedTo configuration option
fixed --fast to work robustly without relying on the \Recent flag in messages
