Fix bug #16129 with slow and incorrect redisplay in follow-mode.

 src/xdisp.c (redisplay_window): Don't skip window redisplay if the
 last value of point is not equal to buffer's point.
* lisp/subr.el (set-transient-map): Fix nested case and docstring.
Fix Bug#16183 about `global-hl-line-sticky-flag'.

* hl-line.el (global-hl-line-overlay): Make a local variable.
(global-hl-line-overlays): New variable to store all overlays.
(global-hl-line-mode): Don't delete overlays from the current
buffer when `global-hl-line-sticky-flag' is non-nil.
(global-hl-line-highlight): Add new overlays to
`global-hl-line-overlays'.
(global-hl-line-unhighlight-all): New function to delete all
overlays when turning off `global-hl-line-mode'.
* lisp/abbrev.el (define-abbrev): Beware new meaning of fboundp.
* lisp/emacs-lisp/elint.el (elint-find-builtins):
* lisp/emacs-lisp/eldoc.el (eldoc-symbol-function):
* lisp/emacs-lisp/bytecomp.el (byte-compile-callargs-warn)
(byte-compile-file-form-defmumble, byte-compile, byte-compile-form):
* lisp/emacs-lisp/byte-opt.el (byte-compile-inline-expand):
* lisp/apropos.el (apropos-safe-documentation):
* lisp/subr.el (symbol-file): Remove redundant fboundp.
* lisp/progmodes/idlw-shell.el (idlwave-shell-comint-filter): Use defalias.
Document calendar-day-header-array

* doc/emacs/cal-xtra.texi (Calendar Customizing):
Mention calendar-day-header-array.

* etc/NEWS: Markup.
* etc/NEWS: Markup trivia
* etc/PROBLEMS: Remove some no-longer relevant stuff re installation
* etc/PROBLEMS: Remove some old stuff; other small edits
* etc/PROBLEMS: More removal of old stuff
* etc/PROBLEMS: Remove yet more old stuff; more small edits
* doc/lispref/display.texi (Logging Messages): Copyedits re messages-buffer.
More doc updates.

* doc/emacs/search.texi (Special Isearch): Document C-x 8 RET in isearch.
(Word Search): Document incremental word search changes.
(Isearch Yank): Document M-s C-e with a prefix argument.

* doc/lispref/files.texi (Changing Files): Document copy-file changes.

* lisp/isearch.el (isearch-yank-char, isearch-yank-word)
(isearch-yank-line): Doc fix.
Explain recent change to log-view.el
Minor tweak for earlier display.texi change
Fix typo in previous
* lisp/isearch.el (isearch-mode-map): Bind [return] and [backspace] to
isearch-exit and isearch-delete-char resp.  (Bug#16342, bug#16035)

* lisp/progmodes/ps-mode.el (ps-mode-map): Remove [return] key binding
that shadows RET.
Merge some info from etc/MORE.STUFF into efaq.texi

* doc/misc/efaq.texi (Basic editing, Packages that do not come with Emacs):
Merge in some info from etc/MORE.STUFF.
Reference efaq.info in preference to etc/MORE.STUFF

* lisp/help.el (view-external-packages):
* lisp/menu-bar.el (menu-bar-help-extra-packages):
Visit efaq.info rather than etc/MORE.STUFF.
emacs-lisp/package.el (package-delete): Delete package completely

* emacs-lisp/package.el (package-delete): Also delete the package
name from `package-alist', not its description only.
Merge Org version 8.2.5c.