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.

gnome: remove libwnck from the gnome framework

libwnck is a leftover from gnome2 time and almost unused

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.

x11: remove 'Created by' lines

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

  *  Adam Weinberger <adam@vectors.cx>
  *  Adam Weinberger <adamw@FreeBSD.org>
  *  Alex Dupre <ale@FreeBSD.org>
  *  Alexander Matey <matey@cis.ohio-state.edu>
  *  Alexander Nedotsukov <bland@FreeBSD.org>
  *  Alexey Dokuchaev <danfe@FreeBSD.org>
  *  Alexey Dokuchaev <danfe@regency.nsu.ru>
  *  Alexey Mikhailov <karma@ez.pereslavl.ru>
  *  Andrew Pantyukhin <infofarmer@FreeBSD.org>
  *  Anton Berezin <tobez@FreeBSD.org>
  *  Anton Toernqvist <antont@inbox.lv>

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

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)

Remove # $FreeBSD$ from Makefiles.

Add USES=xorg USES=gl, ports categories x

Add USES=xorg and USES=gl to ports in categories starting with 'x'
While here, try to sprinkle other USES (mostly gnome and sdl) as needed.

Convert to UCL & cleanup pkg-message (categories x)

- Switch port to new GitHub home
- While here, add LICENSE

PR:		210428
Submitted by:	eimar.koort@gmail.com (maintainer)

Cleanup plist

- Fix build on 10.x
- Support staging
- Respect CC, CFLAGS and PREFIX

PR:		185018
Submitted by:	Eimar Koort <eimar.koort@gmail.com> (maintainer)

- Remove manual creation and removal of share/applications, as it's now in the
mtree (remaining categories)
- Add note on mtree change to CHANGES

Approved by:	portmgr (bdrewery)

Add NO_STAGE all over the place in preparation for the staging support (cat:
x11)

Finish converting the whole ports tree to USES=pkgconfig

- Add additional master site

While here:
- Trim Makefile headers

PR:		175651
Submitted by:	Eimar Koort <eimar.koort@gmail.com> (maintainer)

new devel/pkgconf added to replace devel/pkg-config. new version of pkg-config
are no more self hosting so we are stuck with 0.25 version while pkgconf provide
the same set of features as 0.27 and a compatible frontend. A symlink to
pkg-config has been added for convenience and compatibility

This also introduces a new macro to use pkgconf in your ports:
USE_PKGCONFIG

it can take the following arguments:
 - yes (meaning build only dep)
 - build (meaning build only dep)
 - run (meaning run only dep)
 - both (meaning run and build dep)

From now USE_GNOME= pkgconfig is deprecated in favour of USE_PKGCONFIG
The old gnome macro has been modified to use pkgconf but still the sameway: run
and build dep to avoid large breakage.

While here fix some ports relying on pkg-config but not specifying it, fix some
ports broken because testing wrong .pc files, and fix ports using pkg-config
--version to determine pkg-config version instead of
pkg-config --modversion pkg-config like recommanded by pkg-config

With Hat:	portmgr
Exp-runs by:	bapt (pointhat-west), beat (pointyhat)

- update png to 1.5.10

- Get Rid MD5 support

The purpose of keyboardcast is to allow you to send keystrokes to multiple
X windows at once. This allows you, for example, to control a number of
terminals connected to different but similar hosts for purposes of mass-
administration.

You can also select non-terminals. If you come up with a reasonable use
for this ability I'd be interested in hearing about it.

The program can select windows to send to either by matching their titles
(using a substring) or by clicking on them (in a method similar to GIMP's
screenshot feature).

The program also features the ability to spawn off multiple instances of
gnome-terminal executing a single command on multiple arguments (for example
executing 'ssh' on several hosts). The gnome-terminals are invoked with
the profile 'keyboardcast' if it exists (so, for example, your font size
can be smaller).

WWW: https://launchpad.net/keyboardcast

PR:             ports/142744
Submitted by:   eimar.koort