opening the boxes instead of "sort-of-on-demand" - this is much simpler.
match from messages to sync records, not the other way round - makes the
debug output shorter, as the separate dump_box() is gone now.
he would either expunge the mailbox or configure his MUA to hide trashed
messages. consequently don't sync expired message flags, let alone
interpret them in a special way.
one special feature remains, though: if a non-expunged expired message
is flagged on the master, it will be unexpired on the slave. i'm not
sure whether i should remove or document this feature.
as opposed to earlier threats, BerkDB was not entirely dropped; i
suppose the isync 0.7 -> 0.8 change had a reason, so i added an
alternative UID storage scheme.
note that BDB 4.0 is not sufficient, as the db->open function changed in
an incompatible way ...
i updated the debian packaging except for a changelog entry.
note that i removed the upgrade blurb, as upstream now has a smooth
upgrade path down to at least isync 0.4.
