* lisp/tutorial.el (tutorial--buffer): New variable (bug#27998).
(tutorial--save-on-kill): Use it.
(help-with-tutorial): Set it and add new function to
kill-emacs-query-functions.
* lisp/dired.el (dired--find-file): New function (bug#28949).
(dired-find-file): Use it.
(dired-mouse-find-file): Ditto.
(dired-find-file-other-window): Ditto.
* src/image.c (rsvg_handle_set_dpi_x_y) [WINDOWSNT]: DEF_DLL_FN it.
(init_svg_functions): LOAD_DLL_FN rsvg_handle_set_dpi_x_y.
<rsvg_handle_set_dpi_x_y>: Define as a macro
* doc/lispref/backups.texi (Reverting): Mention markers from
non-file sources (bug#30028).
* lisp/files.el (revert-buffer): Mention what happens with markers
(bug#30028).
* src/fileio.c (Finsert_file_contents): Say a bit more about what
markers are restored (bug#30028).
* src/w32term.c (w32_image_size): New function.
* src/image.c (image_frame_cache_size) [HAVE_NTGUI]: Support
reporting the size of frame image cache.
(image_frame_cache_size, Fimage_cache_size): The total size is
now of the type 'size_t', not 'int'.
* src/nsterm.m (ns_destroy_window): Close the window before freeing
the frame resources so we don't end up accessing the frame struct
after it's been freed.
(cherry picked from commit 18a7267c32)
* src/nsterm.m (ns_update_end): There's no need to schedule a redraw
if nothing has been changed.
(ns_set_vertical_scroll_bar):
(ns_set_horizontal_scroll_bar): Fix the logic for clearing under the
scrollbars.
(ns_clear_under_internal_border): No need to clip, the default
clipping rectangle will be fine.
* src/image.c (svg_css_length_to_pixels): Pass in a DPI value instead
of using a hard coded value.
(svg_load_image): Set the DPI on the rsvg_handle, and pass it to
svg_css_length_to_pixels.
* src/dispextern.h (struct image): Add original dimension elements.
* src/image.c (image_set_transform): Store the original dimensions.
(image_get_x_image): If we're using transforms use the original
dimensions with XGetImage.
* lisp/progmodes/cperl-mode.el (cperl-find-pods-heres):
Eliminate conditionals which always evaluate to true if
font-lock is preloaded (since Emacs 22.1). (Bug#45183)
* lisp/doc-view.el (doc-view-mode-map): Bind k to image-kill-buffer.
The binding k -> doc-view-kill-proc-and-buffer has been removed in
2015 and the function been made an obsolete function alias to
image-kill-buffer (bug#45157).
* lisp/gnus/gnus-win.el (gnus-buffer-configuration): Include
shell-command-buffer-name value rather than symbol in pipe
configuration. (Bug#39138, bug#45154)
One search may be applied to several servers: don't let one server's
error derail the whole process.
* lisp/gnus/gnus-search.el (gnus-search-config-error): Define new
error.
(gnus-search-run-search, gnus-search-server-to-engine): Raise this
specific error as appropriate.
(gnus-search-run-query): Catch this error and effectively demote it.
* src/xdisp.c (pos_visible_p): Don't try accessing the glyphs
produced by iterator whose glyph_row was set to NULL; instead,
record the X coordinate before the display string when moving past
it, and use the recorded coordinate if needed. (Bug#45156)
* test/src/casefiddle-tests.el (casefiddle-tests-char-casing):
(upcase ?ß) now returns ?ẞ (U+7838), partly for technical reasons but
the previous behaviour was arbitrary and arguably less useful.
Correct upcasing of ß is normally SS, which is what Fupcase returns if
given a string, or (for special purposes) ẞ.
* lisp/pcomplete.el (pcomplete-comint-setup): Fix thinko in my
previous commit. This was not a quoted symbol but a variable, and
therefore cannot use setq-local.
