(mime-find-root-entity): New function.

(mime-find-root-entity): New function.
(mime-entity-header-buffer): Comment out.
(mime-goto-header-start-point): Likewise.
(mime-entity-header-start-point): Likewise.
(mime-entity-header-end-point): Likewise.
(mime-entity-body-buffer): Likewise.
(mime-goto-body-start-point): Likewise.
(mime-goto-body-end-point): Likewise.
(mime-entity-body-start-point): Likewise.
(mime-entity-body-end-point): Likewise.
(mime-entity-body-start): Likewise.
(mime-entity-body-end): Likewise.
(mime-entity-buffer): Likewise.
(mime-entity-point-min): Likewise.
(mime-entity-point-max): Likewise.
(mime-insert-entity-body): New generic function.
(mime-entity-uu-filename): Use `mime-insert-entity-body'.
(mime-entity-set-content-type): New function.
(mime-entity-set-encoding): New function.