fix initial response contents
restore previous expansion behavior
improve attachment handling, show when message is sent
reorder whole threads when new messages come in
close all messages when quitting.
compmain should run in a thread, not a proc
clear win fully on close, don't double-send events, tweak shutdown code.
cosmetic fixes, write events back correctly
handle recursive multipart messages
fix fromcolon formatting: no stray spaces
use fromcolon instead of from in message view
switch glyph for new messages
use appropriate default mbox
deletion: finish implementation
tweak sorting: threads go newest too oldest
bugfixes: fix new messages, crashes on empty fields.