Remove mention of the key-binding-data cache since we don't use it
any more.
* doc/lispref/modes.texi (Derived Modes): Mention prog-mode.
Fixes: debbugs:7542
* backups.texi (Making Backups): backup-directory-alist and
make-backup-file-name-function are options.
(Auto-Saving): auto-save-list-file-prefix is an option.
* buffers.texi (Killing Buffers): buffer-offer-save is an
option.
* display.texi (Refresh Screen): no-redraw-on-reenter is an
option.
(Echo Area Customization): echo-keystrokes is an option.
(Selective Display): selective-display-ellipses is an option.
(Temporary Displays): temp-buffer-show-function is an option.
(Face Attributes): underline-minimum-offset and x-bitmap-file-path
are options.
(Font Selection): face-font-family-alternatives,
face-font-selection-order, face-font-registry-alternatives, and
scalable-fonts-allowed are options.
(Fringe Indicators): indicate-buffer-boundaries is an option.
(Fringe Cursors): overflow-newline-into-fringe is an option.
(Scroll Bars): scroll-bar-mode is an option.
* eval.texi (Eval): max-lisp-eval-depth is an option.
* files.texi (Visiting Functions): find-file-hook is an option.
(Directory Names): directory-abbrev-alist is an option.
(Unique File Names): temporary-file-directory and
small-temporary-file-directory are options.
* frames.texi (Initial Parameters): initial-frame-alist,
minibuffer-frame-alist and default-frame-alist are options.
(Cursor Parameters): blink-cursor-alist and
cursor-in-non-selected-windows ar options.
(Window System Selections): selection-coding-system is an
option.
(Display Feature Testing): display-mm-dimensions-alist is an
option.
* help.texi (Help Functions): help-char and help-event-list are
options.
* keymaps.texi (Functions for Key Lookup): meta-prefix-char is
an option.
* minibuf.texi (Minibuffer History): history-length and
history-delete-duplicates are options.
(High-Level Completion): read-buffer-function and
read-buffer-completion-ignore-case are options.
(Reading File Names): read-file-name-completion-ignore-case is
an option.
* modes.texi (Mode Line Top): mode-line-format is an option.
(Mode Line Variables): mode-line-position and mode-line-modes
are options.
* nonascii.texi (Text Representations):
enable-multibyte-characters is an option.
(Default Coding Systems): auto-coding-regexp-alist,
file-coding-system-alist, auto-coding-alist and
auto-coding-functions are options.
(Specifying Coding Systems): inhibit-eol-conversion is an
option.
* os.texi (Init File): site-run-file is an option.
(System Environment): mail-host-address is an option.
(User Identification): user-mail-address is an option.
(Terminal Output): baud-rate is an option.
* positions.texi (Word Motion): words-include-escapes is an
option.
* searching.texi (Standard Regexps): page-delimiter,
paragraph-separate, paragraph-separate and sentence-end are
options.
* text.texi (Margins): left-margin and fill-nobreak-predicate
are options.
* variables.texi (Local Variables): max-specpdl-size is an
option.
* windows.texi (Choosing Window):
split-window-preferred-function, special-display-function and
display-buffer-function are options.
support multi-line toolbars. Suggested by Stephen Eglen.
* frames.texi (Layout Parameters): Mention that Nextstep also
allows only one tool-bar line. Suggested by Stephen Eglen.
