Omit buffer_slot_type_mismatch and use generic predicates to enforce
the type of per-buffer values where appropriate.
* src/lisp.h (struct Lisp_Buffer_Objfwd): Rename slottype member to
predicate, which is how it's really used now.  Adjust comment.
* src/buffer.h (buffer_slot_type_mismatch): Remove prototype.
* src/buffer.c (buffer_slot_type_mismatch): Remove.
(DEFVAR_PER_BUFFER, defvar_per_buffer): Rename type argument to
predicate.  Adjust comment.
(syms_of_buffer): Use Qsymbolp for major-mode.  Use Qintegerp for
fill-column, left-margin, tab-width, buffer-saved-size,
left-margin-width, right-margin-width, left-fringe-width,
right-fringe-width, scroll-bar-width and buffer-display-count.
Use Qstringp for default-directory, buffer-file-name,
buffer-file-truename and buffer-auto-save-file-name.  Use Qfloatp for
scroll-up-aggressively and scroll-down-aggressively.  Use Qnumberp for
line-spacing.
* src/data.c (store_symval_forwarding): Adjust to call the predicate.
* lisp/cus-start.el (toplevel): Only allow float values for
scroll-up-aggressively and scroll-down-aggressively.
Allow any number for line-spacing.
* autorevert.el: Add file watch support.
(auto-revert-notify-enabled): New defconst.
(auto-revert-notify-watch-descriptor-hash-list)
(auto-revert-notify-watch-descriptor)
(auto-revert-notify-modified-p): New defvars.
(auto-revert-notify-rm-watch, auto-revert-notify-add-watch)
(auto-revert-notify-handler): New defuns.
(auto-revert-mode, global-auto-revert-mode): Remove file watches
when mode is disabled.
(auto-revert-handler): Check for `auto-revert-notify-modified-p'.
(auto-revert-buffers): Add file watches for active buffers.
* lisp/man.el: Handle different "man -k" behaviors.  Use utf-8.
(Man-man-k-use-anchor): New var.
(Man-parse-man-k): New function.
(Man-completion-table): Use it.
(man): Flush the completion cache between uses.
* test/automated/man-tests.el: New file.
* lisp/progmodes/which-func.el (which-function): Understand Semantic's use
of overlays in imenu--index-alist.
* lisp/files.el (auto-mode-alist): Use doc-view for djvu files.
* lisp/doc-view.el (doc-view-document->bitmap):
Use doc-view-single-page-converter-function instead of
single-page-converter arg; adjust callers.
* gtkutil.c (xg_initialize): Add ifdef HAVE_FREETYPE around
x_last_font_name.
* autorevert.el (auto-revert-notify-enabled): Move up.
(auto-revert-use-notify): New defcustom.
(auto-revert-mode, global-auto-revert-mode)
(auto-revert-notify-add-watch, auto-revert-handler)
(auto-revert-buffers): Use `auto-revert-use-notify' instead of
`auto-revert-notify-enabled'.
emacsclient -t should not suspend Emacs server

* lisp.h, sysdep.c (block_tty_out_signal, unblock_tty_out_signal):
New functions.
* term.c (init_tty): Use them instead of rolling our own code.
* sysdep.c (tcsetpgrp_without_stopping): Likewise.  Here, this
switches from 'signal' to 'pthread_sigmask', which is safer in
multithreaded applications.
* term.c (Fresume_tty): Don't bother dissociating if O_IGNORE_CTTY,
which has already arranged for that.
(dissociate_if_controlling_tty): If setsid fails, fall back on TIOCNOTTY.
This is the main part of the bug fix.
lisp/gnus/mml-smime.el: Add mml-smime-encrypt-to-self

* mml-smime.el (mml-smime-encrypt-to-self): New user option analogous
to mml2015-encrypt-to-self.
(mml-smime-epg-encrypt): Respect mml-smime-encrypt-to-self.