if node has no next, previous or up links.
Hide the part of the first line that is used in the header.
Use Info-next-link-keymap, etc.
(Info-next-link-keymap, Info-prev-link-keymap)
(Info-up-link-keymap): New variables.
(font-lock-set-defaults): Variable alist settings moved back into
font-lock-set-defaults-1.
(turn-on-font-lock-if-enabled): Always turn on font-lock unless it
is specifically excluded by the user.
(comint-last-output-overlay): Variable removed.
(comint-send-input, comint-output-filter): Use text properties instead
of overlays.
(comint-insert-clicked-input): Rewrite to work with text properties as
well as overlays.
(comint-snapshot-last-prompt): Snapshot using text properties.
(comint-get-old-input-default, comint-extract-string): Don't copy text
properties.
(choose-completion-string1): Merged back into choose-completion-string.
(choose-completion-string): Run choose-completion-string-functions
after checking for proper minibuffer window. Added mini-p arg to
the hook functions. Insert choice if all hook functions return nil.
(choose-completion-string-functions): Doc update.
(byte-compile-delete-first): New function.
(byte-compile-read-position): New variable.
(byte-compile-last-position): New variable.
(byte-compile-current-buffer): New variable.
(byte-compile-log-1): Use it.
(byte-compile-set-symbol-position): New function.
(byte-compile-obsolete, byte-compile-callargs-warn)
(byte-compile-arglist-warn, byte-compile-arglist-warn)
(byte-compile-print-syms, byte-compile-file-form-defmumble)
(byte-compile-check-lambda-list, byte-compile-lambda)
(byte-compile-form, byte-compile-variable-ref)
(byte-compile-subr-wrong-args, byte-compile-negation-optimizer)
(byte-compile-condition-case, byte-compile-defun)
(byte-compile-defvar, byte-compile-autoload)
(byte-compile-lambda-form): Use it.
(byte-compile-from-buffer): Set it, and bind
`read-with-symbol-positions' and `read-symbol-positions-list'.
(byte-compile-debug): New variable.
behaviour with standard set-mark-command.
(cua--pre-command-handler): Use push-mark-command.
(cua-repeat-replace-region): Improve functionality when
repeated after moving point or changing buffer.
