* lsdb.el (lsdb-temp-buffer-show-function): New user option.

* lsdb.el (lsdb-temp-buffer-show-function): New user option.
(lsdb-pop-up-windows): New user option.
(lsdb-fit-window-to-buffer): Splitted from lsdb-temp-buffer-show-function.
(lsdb-mode-show-buffer): New function.
(lsdb-gnus-update-record): Don't show LSDB buffer when
lsdb-pop-up-windows is nil.
(lsdb-wl-update-record): Likewise.
(lsdb-mew-update-record): Likewise.
(lsdb-wl-insinuate): Set wl-summary-toggle-disp-off-hook,
wl-summary-toggle-disp-folder-on-hook,
wl-summary-toggle-disp-folder-off-hook, and
wl-summary-toggle-disp-folder-message-resumed-hook.
(lsdb-wl-temp-buffer-show-function): New function.
From Yuuichi Teranishi <teranisi@gohome.org>.