(mime-parse-buffer): Auto-loaded from "mmbufer".

(mime-parse-buffer): Auto-loaded from "mmbufer".
(mime-find-function): Abolished.
(mime-entity-function): Abolished.
(mime-entity-send): Use `luna-send'.
(mime-open-entity): Use `luna-make-entity' and `mm-expand-class-name'.
(mime-entity-cooked-p): Use `luna-define-generic'.
(mime-entity-children): Use `luna-send'.
(mime-find-entity-from-content-id): Use `mime-entity-read-field'.
(mime-entity-buffer): Change to generic function.
(mime-entity-header-buffer): New generic function.
(mime-entity-body-buffer): Likewise.
(mime-entity-point-min): Use `luna-define-generic'.
(mime-entity-point-max): Likewise.
(mime-entity-header-start): Abolished.
(mime-entity-header-end): Abolished.
(mime-entity-body-start): Abolished.
(mime-entity-body-end): Abolished.
(mime-goto-header-start-point): New generic function.
(mime-entity-fetch-field): New generic function.
(mime-fetch-field): Use `mime-entity-fetch-field'; declare as obsolete
function.
(mime-entity-content-type): Use `mime-entity-fetch-field'.
(mime-entity-content-disposition): Likewise.
(mime-entity-encoding): Likewise.
(mime-entity-read-field): New function.
(mime-read-field): Use `mime-entity-read-field'; declare as obsolete
function.
(mime-insert-header): Use `luna-define-generic'; abolish obsolete
alias `mime-insert-decoded-header'.
(mime-entity-name): New generic function.
(mime-entity-content): Use `luna-define-generic'.
(mime-insert-entity-content): Likewise.
(mime-write-entity-content): Likewise.
(mime-insert-text-content): Likewise.
(mime-insert-entity): Likewise.
(mime-write-entity): Likewise.
(mime-write-entity-body): Likewise.