(locate-update): New function.

(locate-update): New function.
(locate-current-line-number): Renamed from `current-line'.
(locate-default-make-command-line): Use list, not cons.
(locate): Added a `save-window-excursion' form.
(locate): Used an `apply' form for the start-process call.
(locate-mode): Now has a `revert-buffer-function'
(locate-do-setup): Now longer deletes window.
(locate-header-face): Use underline, not region.
(locate-update-command): New option.
(locate-command): Changed from defvar to defcustom.
(locate-make-command-line): Changed from defvar to defcustom.
(locate-fcodes-file): Changed from defvar to defcustom.
(locate-mouse-face): Changed from defvar to defcustom.