* message-list.c (message_list_select_next): New function to
select the first message on or after the given row that meets
certain flag criteria.
* folder-browser.c (etable_key): call message_list_select_next to
select next non-deleted message after Delete.
* mail-ops.c (real_fetch_mail): call message_list_select_next to
select first unread message in current folder if it changes.
(real_delete_msg): Remove the code to move the etable cursor. It
only makes sense really if you deleted the message with the
keyboard, so do it from there.
svn path=/trunk/; revision=3927
647cc8b636
