Fixes:
- delivery-queue: fix three crashes involving stream processing
- exmdb_local: stop emitting bogus message length into temporary message files
- exmdb_local: fix crash on read-back of temporary message files
- mda: add a delivery mechanism for Out Of Office autoreplies
- mt2exm: fix an inverted condition that would erroneously raise error code PG-1122
Enhancements:
- mt2exm: add an -x option for ignoring duplicated folder creations
- kdb2mt: the special folder for junk e-mail is now recognized (relevant for when the -s command-line option is used).
Changes:
- delivery-queue: the flusher plugin mechanism has been dropped; the only plugin there was, libgxf_message_enqueue, is now directly in the program.
- Scope-based resource management for a number of internal library classes.