* wl-acap.el (wl-acap-original-msgdb-directory): Renamed from

* wl-acap.el (wl-acap-original-msgdb-directory): Renamed from
`wl-acap-original-msgdb-dir'.

* wl-vars.el (wl-icon-directory): Renamed from `wl-icon-dir'.
(wl-score-files-directory): Renamed from `wl-score-fiels-dir'.

* wl-mime.el (wl-mime-save-directory): Renamed from
`wl-mime-save-directory'.

* elmo.el (elmo-folder-make-temporary-directory): Renamed from
`elmo-folder-make-temp-dir'

* elmo-vars.el (elmo-cache-directory): New variable.
(elmo-cache-dir): Abolished.
(elmo-msgdb-directory): Renamed from `elmo-msgdb-directory'.