* wl-summary.el (wl-summary-prefetch-msg): Use

* wl-summary.el (wl-summary-prefetch-msg): Use
 `elmo-msgdb-overview-get-entity' instead of `assoc'.

* wl-vars.el: Define *-func as obsolete variable using
 `elmo-define-obsolete-variable'.

* wl-message.el (wl-message-buffer-prefetch-threshold): Eliminated.
 (wl-message-buffer-prefetch): Use `elmo-message-fetch-threshold'
 instead of `wl-message-buffer-prefetch-threshold'.

* elmo-util.el (elmo-resque-obsolete-variable): Use defvaralias if defined.

* mmimap.el (toplevel): Require 'mime-parse and 'static.
 (mmimap-parse-parameters-from-list): Define as alias for
 `mime-decode-parameter-plist' if it is defined as function.
 (mmimap-make-mime-entity): Added argument `number'.
 (initialize-instance): Set `number' argument of mmimap-make-mime-entity as 0.
 (mime-imap-entity-header-string): Arrange node-id for rfc2060 section.