(rmail-summary-expunge-and-save): Do save-buffer last.

(rmail-summary-expunge-and-save): Do save-buffer last.
Use two separate save-excursion calls.
(rmail-summary-input): Use pop-to-buffer.
(rmail-summary-get-new-mail): Gobble rmail-current-message;
later go to that message.
(rmail-summary-next-msg): Start at end of line, if moving forward.
Move to beginning of line, after the loop.
(rmail-new-summary): Fix format of elt in minor-mode-alist.