* wl.el (wl-plugged-mode): Use revised `wl-mode-line-buffer-identification'.

* wl.el (wl-plugged-mode): Use revised `wl-mode-line-buffer-identification'.
(wl-plugged-init): Don't use `force-mode-line-update'.

* wl-xmas.el (wl-draft-overload-functions): Use revised
`wl-mode-line-buffer-identification'.
(wl-setup-summary): Renamed from `wl-xmas-setup-summary'.
(wl-setup-folder): Renamed from `wl-xmas-setup-folder'.
(TopLevel): Add `wl-setup-summary' to `wl-summary-mode-hook';
add `wl-plugged-init-icons' and `wl-biff-init-icons' to `wl-make-plugged-hook';
add `wl-folder-init-icons' and `wl-setup-folder' to `wl-folder-mode-hook'.

* wl-vars.el (wl-use-highlight-mouse-line): Activate it for Emacs 19 as well.
(wl-mode-line-display-priority-list): New user option.
(wl-biff-state-indicator-off, wl-biff-state-indicator-on): Defcustomized.
(wl-make-plugged-hook, wl-summary-mode-hook, wl-folder-mode-hook): Add docs.

* wl-util.el (wl-biff-start): Call `wl-biff-check-folders' at the start.
(wl-mode-line-buffer-identification): Revised as a function.

* wl-summary.el (wl-summary-mode): Use revised
`wl-mode-line-buffer-identification'; don't call `wl-e21-setup-summary' nor
`wl-xmas-setup-summary' directly.
(TopLevel): Don't bind `wl-e21-setup-summary' nor `wl-xmas-setup-summary'.

* wl-nemacs.el (wl-draft-overload-functions): Use revised
`wl-mode-line-buffer-identification'.

* wl-mule.el (wl-draft-overload-functions): Use revised
`wl-mode-line-buffer-identification'.

* wl-folder.el (wl-make-plugged-alist): Don't call `wl-biff-init-icons' nor
`wl-plugged-init-icons' directly.
(wl-folder): Don't call `wl-folder-init-icons' directly.
(wl-folder-mode): Don't call `wl-e21-setup-folder' nor `wl-xmas-setup-folder'
directly; use revised `wl-mode-line-buffer-identification'.
(TopLevel): Don't bind `wl-biff-init-icons', `wl-plugged-init-icons',
`wl-folder-init-icons', `wl-e21-setup-folder' nor `wl-xmas-setup-folder'.

* wl-e21.el (wl-draft-overload-functions): Use revised
`wl-mode-line-buffer-identification'.
(wl-setup-summary): Renamed from `wl-e21-setup-summary'.
(wl-setup-folder): Renamed from `wl-e21-setup-folder'.
(TopLevel): Add `wl-setup-summary' to `wl-summary-mode-hook';
add `wl-plugged-init-icons' and `wl-biff-init-icons' to `wl-make-plugged-hook';
add `wl-folder-init-icons' and `wl-setup-folder' to `wl-folder-mode-hook'.