* wl-summary.el (wl-summary-detect-mark-position): Follow the API

* wl-summary.el (wl-summary-detect-mark-position): Follow the API
change in elmo-msgdb-make-message-entity.
(wl-summary-buffer-set-folder): Don't call
wl-summary-detect-mark-position here.
(wl-summary-rescan): Call elmo-message-entity-number.
(wl-summary-sync-update): Ditto.
(wl-summary-goto-folder-subr): Call wl-summary-detect-mark-position.

* wl-score.el (wl-score-header-index): Redefine 2th element.
(wl-score-overview-entity-get-extra): Abolish.
(wl-score-ov-entity-get): Rewrite.
(wl-score-string-index<, wl-score-string-func<): Abolish.
(wl-score-string<): New function.
(wl-score-string-sort): Use it.

* wl-refile.el (wl-refile-guess-by-history): Use
elmo-message-entity-field.
(wl-refile-guess-by-from): Ditto.
(wl-refile-guess-by-msgid): Ditto.

* modb.el (elmo-message-entity-db): New function.
(elmo-msgdb-make-message-entity): New API.
(elmo-msgdb-message-entity-number): Ditto.
(elmo-msgdb-message-entity-set-number): Ditto.
(elmo-msgdb-message-entity-field): Ditto.
(elmo-msgdb-message-entity-set-field): Ditto.
(elmo-msgdb-copy-message-entity): Ditto.
(elmo-msgdb-create-message-entity-from-file): Ditto.
(elmo-msgdb-create-message-entity-from-buffer): Ditto.
(elmo-msgdb-match-condition-internal): Ditto.

* modb-standard.el (modb-legacy): Require modb-legacy.
(modb-standard-make-message-entity): New inline function.
(elmo-msgdb-make-message-entity): Define.
(elmo-msgdb-create-message-entity-from-file): Ditto.
(elmo-msgdb-create-message-entity-from-buffer): Ditto.
(elmo-msgdb-message-entity-field): Ditto.
(elmo-msgdb-message-entity-set-field): Ditto.
(elmo-msgdb-copy-message-entity): Ditto.
(elmo-msgdb-match-condition-internal): Ditto.

* modb-legacy.el: Don't require modb-entity.
(elmo-msgdb-decoded-cache-hashtb): Moved from elmo-msgdb.el
(elmo-msgdb-match-condition-primitive): Ditto.
(elmo-msgdb-get-decoded-cache): Ditto.
(elmo-msgdb-overview-entity-get-id): Ditto.
(elmo-msgdb-overview-entity-get-number): Ditto.
(elmo-msgdb-overview-entity-set-number): Ditto.
(elmo-msgdb-overview-entity-get-references): Ditto.
(elmo-msgdb-overview-entity-set-references): Ditto.
(elmo-msgdb-overview-entity-get-from-no-decode): Ditto.
(elmo-msgdb-overview-entity-get-from): Ditto.
(elmo-msgdb-overview-entity-set-from): Ditto.
(elmo-msgdb-overview-entity-get-subject): Ditto.
(elmo-msgdb-overview-entity-get-subject-no-decode): Ditto.
(elmo-msgdb-overview-entity-set-subject): Ditto.
(elmo-msgdb-overview-entity-get-date): Ditto.
(elmo-msgdb-overview-entity-set-date): Ditto.
(elmo-msgdb-overview-entity-get-to): Ditto.
(elmo-msgdb-overview-entity-get-cc): Ditto.
(elmo-msgdb-overview-entity-get-size): Ditto.
(elmo-msgdb-overview-entity-set-size): Ditto.
(elmo-msgdb-overview-entity-get-extra): Ditto.
(elmo-msgdb-overview-entity-set-extra): Ditto.
(elmo-msgdb-overview-entity-get-extra-field): Ditto.
(elmo-msgdb-overview-entity-set-extra-field): Ditto.
(elmo-msgdb-number-load): Ditto.
(elmo-msgdb-overview-load): Ditto.
(elmo-msgdb-mark-load): Ditto.
(elmo-msgdb-number-save): Ditto.
(elmo-msgdb-mark-save): Ditto.
(elmo-msgdb-overview-save): Ditto.
(modb-legacy-make-message-entity): New inline function.
(elmo-msgdb-insert-file-header): Ditto.
(elmo-msgdb-make-message-entity): Define.
(elmo-msgdb-create-message-entity-from-file): Ditto.
(elmo-msgdb-create-message-entity-from-buffer): Ditto.
(elmo-msgdb-message-entity-number): Ditto.
(elmo-msgdb-message-entity-set-number): Ditto.
(elmo-msgdb-message-entity-field): Ditto.
(elmo-msgdb-message-entity-set-field): Ditto.
(elmo-msgdb-copy-message-entity): Ditto.
(elmo-msgdb-match-condition-internal): Ditto.

* elmo.el (elmo-find-fetch-strategy): Use elmo-message-entity-field.
(elmo-message-copy-entity): Rewrite.
(elmo-message-entity-number): Ditto.
(elmo-message-entity-set-number): Ditto.
(elmo-message-entity-field): Use elmo-message-entity-db.
(elmo-message-entity-set-field): Ditto.
(elmo-message-field): Rewrite.

* elmo-util.el (elmo-msgdb-get-last-message-id): Moved from
elmo-msgdb.el
(elmo-msgdb-get-message-id-from-buffer): Ditto.

* elmo-shimbun.el (elmo-shimbun-folder-entity-hash): Use
elmo-message-entity-field.
(elmo-shimbun-folder-shimbun-header): Ditto.
(elmo-shimbun-entity-to-header): Ditto.
(elmo-folder-msgdb-create): Ditto.
(elmo-shimbun-msgdb-create-entity): Ditto;
Use elmo-msgdb-create-message-entity-from-buffer.
(elmo-shimbun-update-overview): Use elmo-message-entity-set-field.
(elmo-map-folder-list-message-locations): elmo-message-entity-field.

* elmo-sendlog.el (elmo-folder-msgdb-create): Use
elmo-msgdb-create-message-entity-from-file and
elmo-message-entity-field.

* elmo-pop3.el (elmo-pop3-sort-msgdb-by-original-number): Use
elmo-message-entity-number.
(elmo-pop3-msgdb-create-message): Use
elmo-msgdb-create-message-entity-from-buffer,
elmo-message-entity-set-field, elmo-message-entity-number and
elmo-message-entity-set-number.

* elmo-nntp.el (elmo-nntp-create-msgdb-from-overview-string): Follow
the API change in elmo-msgdb-make-message-entity.
(elmo-nntp-msgdb-create-message): Use
elmo-msgdb-create-message-entity-from-buffer.

* elmo-nmz.el (elmo-nmz-msgdb-create-entity): Use
elmo-message-entity-field and
elmo-msgdb-create-message-entity-from-file.

* elmo-msgdb.el (toplevel): Don't require modb-entity.
(elmo-msgdb-get-field): Abolish.
(elmo-msgdb-get-number): Rewrite.
(elmo-msgdb-sort-by-date): Use elmo-message-entity-field.
(elmo-msgdb-flag-table): Ditto.
(elmo-msgdb-get-last-message-id,
elmo-msgdb-number-load, elmo-msgdb-overview-load,
elmo-msgdb-mark-load, elmo-msgdb-number-save,
elmo-msgdb-mark-save, elmo-msgdb-overview-save): Moved to modb-legacy.
(elmo-msgdb-create-overview-from-buffer,
elmo-msgdb-overview-get-parent-entity): Abolish.

* elmo-mime.el (elmo-mime-display-as-is): Use
elmo-message-entity-field.

* elmo-map.el (elmo-folder-pack-numbers): Use
elmo-message-entity-set-number.

* elmo-maildir.el (elmo-folder-msgdb-create):
elmo-msgdb-create-message-entity-from-file instead of
elmo-msgdb-create-overview-entity-from-file.

* elmo-localdir.el (elmo-localdir-msgdb-create-entity): Added argument
msgdb.
(elmo-folder-msgdb-create): Use elmo-message-entity-field.
(elmo-folder-pack-numbers): Use elmo-message-entity-set-number.

* elmo-imap4.el (elmo-imap4-fetch-callback-1-subr): Use
elmo-messge-entity-field and elmo-message-entity-number.
(elmo-imap4-fetch-callback-1): Call
elmo-msgdb-create-message-entity-from-buffer instead of
elmo-msgdb-create-overview-from-buffer.
(elmo-folder-msgdb-create-plugged): Use elmo-messge-entity-field.
(elmo-find-fetch-strategy): Likewise.

* elmo-flag.el (elmo-folder-msgdb-create): Call
elmo-localdir-msgdb-create-entity with argument msgdb.

* elmo-dop.el (elmo-dop-msgdb): Use elmo-message-entity-number
and elmo-message-entity-set-number.

* elmo-cache.el (elmo-folder-msgdb-create): Use
elmo-message-entity-field.
(elmo-folder-msgdb-create): Call
elmo-msgdb-create-message-entity-from-file instead of
elmo-msgdb-create-overview-entity-from-file.

* elmo-archive.el (elmo-archive-msgdb-create-entity-subr): Added
argument msgdb; Call elmo-msgdb-create-message-from-buffer
instead of elmo-msgdb-create-overview-from-buffer.
(elmo-archive-msgdb-create-entity): Ditto.
(elmo-archive-msgdb-create-as-numlist-subr1): Use
elmo-message-entity-field.
(elmo-archive-parse-mmdf): Ditto.

* WL-ELS (ELMO-MODULES): Removed modb-entity.