accessibility/at-spi2-core: update to 2.46.0

What's new in at-spi2-core 2.46.0:
* Fix GetInterfaces documentation on org.a11y.atspi.Accessible
  interface.

What's new in at-spi2-core 2.45.91:
* Send device event controller events using the same signature as other
  events.
* Document the Accessible, Action, and Cache dbus interfaces.
* Fix license of atspi-gmain.c (#87).

What's new in at-spi2-core 2.45.90:
* xml: Add some documentation.
* xml: Fix event arguments.

Remove WWW entries moved into port Makefiles

Commit b7f05445c00f has added WWW entries to port Makefiles based on
WWW: lines in pkg-descr files.

This commit removes the WWW: lines of moved-over URLs from these
pkg-descr files.

Approved by:		portmgr (tcberner)

Add WWW entries to port Makefiles

It has been common practice to have one or more URLs at the end of the
ports' pkg-descr files, one per line and prefixed with "WWW:". These
URLs should point at a project website or other relevant resources.

Access to these URLs required processing of the pkg-descr files, and
they have often become stale over time. If more than one such URL was
present in a pkg-descr file, only the first one was tarnsfered into
the port INDEX, but for many ports only the last line did contain the
port specific URL to further information.

There have been several proposals to make a project URL available as
a macro in the ports' Makefiles, over time.

deskutils: remove 'Created by' lines

A big Thank You to the original contributors of these ports:

  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Alex "lissyara" Keda <admin@lissyara.su>
  *  Alexander Logvinov <ports@logvinov.com>
  *  Alexander Vereeken <Alexander88207@protonmail.com>
  *  Alexey Dokuchaev <danfe@FreeBSD.org>
  *  Andreas Kohn <andreas@syndrom23.de>
  *  Andrew Hsu <ahsu@users.sf.net>
  *  Andrew Pantyukhin <infofarmer@FreeBSD.org>
  *  Andrey Zakhvatov
  *  Andrey Zakhvatov <andy@icc.surw.chel.su>
  *  Anton Berezin <tobez@FreeBSD.org>

gnome: fix distinfo broken earlier

gnome: remove more reference to gnome 3

textproc/libxml2: bump all LIB_DEPENDS consumers

This is a separate commit to facilitate easier cherry-picking for
quarterly.

PR: 262853, 262940, 262877, 263126
Approved by: fluffy (mentor)

textproc/libxml2: bump all dependencies

This should make sure that all dependent ports will pick
up the new version commited with a13ec21cd733f67a9fc0dc00ab45268bdc236246

deskutils/gnome-dictionary: unbreak build with Meson 0.61.0

data/appdata/meson.build:3:5: ERROR: Function does not take positional
arguments.

PR:		260943
Reported by:	antoine (via exp-run)
Regressed by:	https://github.com/mesonbuild/meson/commit/61f2866a9fa1

INSTALLS_ICONS: retire the macro and rework the related dependencies

While here, make sure gtk-update-icon-cache is only on run dependency
where added as a dependency
Enforce gtk3 to depend on gtk-update-icon-cache (previously it was
inheriting the dependency)

deskutils/gnome-dictionary: Update to 40.0

Remove # $FreeBSD$ from Makefiles.

The FreeBSD GNOME team proudly presents GNOME 3.28 for FreeBSD.

The offical GNOME 3.28 release notes can be found at
https://help.gnome.org/misc/release-notes/3.28/

Thanks to Antoine Brodin for running the exp-runs.

PR:		229761

- Fix trailing whitespace in pkg-descrs, categories [a-f]*

Approved by:	portmgr blanket

Remove ${PORTSDIR}/ from dependencies, categories d, e, f, and g.

With hat:	portmgr
Sponsored by:	Absolight

The FreeBSD GNOME team proudly presents GNOME 3.18 for FreeBSD.

The offical GNOME 3.18 release notes can be found at
https://help.gnome.org/misc/release-notes/3.18/

This update doesn't contain the glib/gtk c++ bindings which will
be done in a another update due to the requirement on c++11 and the
amount of fallout this probably will give.

GDM is still at version 3.16 due to some issues.

Bump mate-themes to use the gtk 3.18 version of the themes.

Thanks to Antoine Brodin for running the exp-runs.

This release was made possible by the following people:
  Gustau Perez
  Ting-Wei_Lan

PR:	207006

The FreeBSD GNOME team proudly presents GNOME 3.16 for FreeBSD.

The offical GNOME 3.16 release notes can be found at
https://help.gnome.org/misc/release-notes/3.16/

Upgrade instructions for port users:

Delete the old tracker package with:
# pkg delete -f tracker
And user port upgrade tool of choice to upgrade.

Thanks to Antoine Brodin for running the exp-runs.

This release was made possible by the following people:
  Gustau Perez
  Ting-Wei_Lan

PR:		201980

Update gnome-dictionary to 3.14.2.

The FreeBSD GNOME team proudly presents GNOME 3.14 and Cinnamon 2.2.
Gnome 3.14.1 and Cinnamon 2.2.16 are supported on FreeBSD 9.3-RELEASE and up.

This commit removes the old GNOME 2 desktop, bindings and some ports that
can't be compiled. A few ports where updated to more recent versions to
allow them to compile with this update.

Apart from updating ports to newer versions

GDM is more integrated with gnome-shell now, and handles several things for
the GNOME desktop such as screen locking. If you want to use GNOME 3 via
startx, you will have to add your own lock screen/screensaver. For example
xscreensaver
can be used for sessions started without GDM.

Shell Extensions can be installed via https://extensions.gnome.org/ , we have