* mh/imap-send-shrinkage:
imap-send.c: simplify logic in lf_to_crlf()
imap-send.c: fold struct store into struct imap_store
imap-send.c: remove unused field imap_store::uidvalidity
imap-send.c: use struct imap_store instead of struct store
imap-send.c: remove unused field imap_store::trashnc
imap-send.c: remove namespace fields from struct imap
imap-send.c: remove struct imap argument to parse_imap_list_l()
imap-send.c: inline parse_imap_list() in parse_list()
imap-send.c: remove some unused fields from struct store
imap-send.c: remove struct message
imap-send.c: remove struct store_conf
iamp-send.c: remove unused struct imap_store_conf
imap-send.c: remove struct msg_data
imap-send.c: remove msg_data::flags, which was always zero