Remove expired ports:

Adjusted for ports rescued since r534032

2020-05-05 audio/festvox-czech: Broken for more than 6 months
2020-05-05 audio/gkrellmvolume2: Broken for more than 6 months
2020-05-05 audio/mixmos: Broken for more than 6 months
2020-05-05 audio/mma: Broken for more than 6 months
2020-05-05 audio/pd-cyclone: Broken for more than 6 months
2020-05-05 audio/shorten: Broken for more than 6 months
2020-05-05 audio/taglib-sharp: Broken for more than 6 months
2020-05-05 audio/xhippo: Broken for more than 6 months
2020-05-05 biology/consed: Broken for more than 6 months
2020-05-05 biology/plinkseq: Broken for more than 6 months
2020-05-05 biology/seqtools: Broken for more than 6 months

Deprecate ports broken for more than 6 months

Mark BROKEN

gmake[1]: Entering directory
'/wrkdirs/usr/ports/textproc/libxml++26-reference/work/libxml++-2.40.1'
gmake[1]: *** No rule to make target 'install-data-local'.  Stop.

Reported by:	pkg-fallout

Various cleanup & fixes post-DOCS/EXAMPLES cleanup.

PR:		230864
Submitted by:	mat
exp-runs by:	antoine

Remove ${PORTSDIR}/ from dependencies, categories r, s, t, and u.

With hat:	portmgr
Sponsored by:	Absolight

Cleanup plist

Convert GMAKE to MAKE_CMD
Please note that lots of invocation of MAKE_CMD here are wrong as they do not
properly respect MAKE_ENV and friends

With hat:	portmgr

- Stage support for all -reference ports
- Nuke NOPORTDOCS, those ports are already IGNOREd with NOPORTDOCS

Approved by:	kwm (maintainer)

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

Add an explicit dependency on pkgconf

Update the glib and gtk stack to the lastest stable releases.
Add new ports for the new stable releases of gtk+-3.0.
Update vala to the newest stable release 0.12.1.

Thanks to pav@ for doing multiple exp-runs, and marcus@ for repo-copies.
Full contributors acknowledgment will be given in the GNOME 3 import.

Presenting GNOME 2.30.1 for FreeBSD. The offical release notes for this
release can be found at http://library.gnome.org/misc/release-notes/2.30/ .

This release brings initial PackageKit support, Upower (replaces power
management part of hal), cuse4bsd integration with HAL and cheese, and a
faster Evolution.

Sadly GNOME 2.30.x will be the last release with FreeBSD 6.X support. This
will also be the last of the 2.x releases. The next release will be the
highly-anticipated GNOME 3.0 which will bring with it a new UI experience.

Currently, there are a few bugs with GNOME 2.30 that may be of note for our
users. Be sure to consult the UPGRADING note or the 2.30 upgrade FAQ at
http://www.freebsd.org/gnome/docs/faq230.html for specific upgrading
instructions, and the up-to-date list of known issues.