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