The max-lisp-eval-depth limit is sufficient to prevent unbounded stack
growth including the specbind stack; simplify matters for the user by
not having them to worry about two different limits.  This change
turns max-specpdl-size into a harmless variable with no effects,
to keep existing code happy.

* lisp/subr.el (max-specpdl-size):
Define as an ordinary (but obsolete) dynamic variable.
* admin/grammars/Makefile.in:
* doc/lispintro/emacs-lisp-intro.texi (Loops & Recursion):
* doc/lispref/control.texi (Cleanups):
* doc/lispref/edebug.texi (Checking Whether to Stop):
* doc/lispref/eval.texi (Eval):
* doc/lispref/variables.texi (Local Variables):
* doc/misc/calc.texi (Recursion Depth):
Update documentation.
* etc/NEWS: Announce.
* src/eval.c
(FletX): Use safe iteration to guard against circular bindings list.
(syms_of_eval): Remove old max-specpdl-size definition.
(init_eval_once, restore_stack_limits, call_debugger)
(signal_or_quit, grow_specpdl_allocation):
* leim/Makefile.in:
* lisp/Makefile.in:
* lisp/calc/calc-stuff.el (calc-more-recursion-depth)
(calc-less-recursion-depth):
* lisp/calc/calc.el (calc-do):
* lisp/cedet/semantic/ede-grammar.el (ede-proj-makefile-insert-rules):
* lisp/cedet/semantic/grammar.el (semantic-grammar-batch-build-one-package):
* lisp/cus-start.el (standard):
* lisp/emacs-lisp/comp.el (comp--native-compile):
* lisp/emacs-lisp/edebug.el (edebug-max-depth):
(edebug-read-and-maybe-wrap-form, edebug-default-enter):
* lisp/emacs-lisp/regexp-opt.el (regexp-opt):
* lisp/eshell/esh-mode.el (eshell-mode):
* lisp/loadup.el (max-specpdl-size):
* lisp/mh-e/mh-e.el (mh-invisible-headers):
* lisp/net/shr.el (shr-insert-document, shr-descend):
* lisp/play/hanoi.el (hanoi-internal):
* lisp/progmodes/cperl-mode.el:
* src/fileio.c (Fdo_auto_save):
Remove references to and modifications of max-specpdl-size.

a4078fa628 ; * lisp/vc/ediff.el: Improve wording in last change.
dd077ebded Revert "; * doc/lispintro/emacs-lisp-intro.texi: Fix typo."
362c9ab879 * doc/misc/gnus.texi (Article Washing): Fix Links URL.

This reverts commit 9d0dba44da7ac83d018fff3c26d33dac12ebd806.

This was not a typo, but incorrectly matching parens in Info-mode.

9d0dba44da ; * doc/lispintro/emacs-lisp-intro.texi: Fix typo.
0e336fa51f ; Improve documentation of minibuffer history wrt completion

* doc/lispintro/emacs-lisp-intro.texi (Several files recursively)
(Sorting, Files List): Don't use obsolete library makesum.el as
example.

72fc7258bf Delete references to deleted library hilit19.el
e746fc2e7b Delete stale comments from Lisp Intro manual
77613b9217 ; Delete redundant installation instructions from ebnf2ps.el

* doc/lispintro/emacs-lisp-intro.texi (Args as Variable or List)
(print-elements-of-list, Miscellaneous): Delete some references to
Emacs 22.

Change current-time and related functions back to using the
traditional list form.  Also, add a new boolean variable
current-time-list that lets people try out (TICKS . HZ) form,
with the goal of smoothing the transition.
* src/timefns.c (CURRENT_TIME_LIST): Change default back to true.
(current-time-list): New boolean Lisp variable, which defaults to
CURRENT_TIME_LIST.  All uses of CURRENT_TIME_LIST changed to
use current_time_list, and all documentation changed.

* src/timefns.c (CURRENT_TIME_LIST): Change default to false.
All documentation changed.