* hl-line.el (hl-line-range-function): New variable.
(hl-line-move): New function.
(global-hl-line-highlight): Use `hl-line-move'.
(hl-line-highlight): Ditto.
* scroll-bar.el (scroll-bar-columns): New function derived from
ruler-mode.el.
* fringe.el (fringe-columns): New function derived from
ruler-mode.el.
* ruler-mode.el (top-level): Require scroll-bar and fringe.
(ruler-mode-left-fringe-cols)
(ruler-mode-right-fringe-cols): Use `fringe-columns'.
(ruler-mode-right-scroll-bar-cols)
(ruler-mode-left-scroll-bar-cols): Use `scroll-bar-columns'.
(ruler-mode-ruler-function): New variable.
(ruler-mode-header-line-format): Call `ruler-mode-ruler-function'
if the value for `ruler-mode-ruler-function'is given.
* hexl.el (hexl-mode-hook): Make the hook customizable.
(hexl-address-area, hexl-ascii-area, hexl-ascii-cursor): New
customize variables.
(hexlify-buffer): Put font-lock-faces on the address area and
the ascii area.
(hexl-activate-ruler): New function.
(hexl-follow-line): New function.
(hexl-highlight-line-range): New function.
(hexl-mode-ruler): New function.
sticky as well and made sticky the default. Reimplemented the
global minor mode. Updated the commentary section to document
these changes.
(hl-line-sticky-flag): New user option.
(hl-line-overlay): Made it buffer-local and gave it a docstring.
(global-hl-line-overlay): New variable.
(hl-line-mode): Rewritten to use `hl-line-sticky-flag'.
(hl-line-highlight): Rewritten to use `hl-line-sticky-flag'.
(hl-line-unhighlight): Updated docstring.
(global-hl-line-mode): Implemented directly so that is does not
depend on `hl-line-mode' any more.
(global-hl-line-highlight, global-hl-line-unhighlight): New
functions.
