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

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.

Mark a few ports BROKEN (unfetchable)

Remove indefinite articles and trailing periods from COMMENT, plus
minor COMMENT typos and surrounding whitespace fixes. A few Makefiles
where not included as they contain Latin-1 characters that break
the Phabricator workflow. Category X.

CR:		D511
Approved by:	portmgr (bapt)

Support stagedir.

Approved by:	portmgr (blanket infrastructure)

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

- Update to 3.1

PR:     ports/165157
Submitted by: segin2005 at gmail.com

- Get Rid MD5 support

`deskpaint' is a small interactive paint program that paints
onto the desktop window, so that the user draws their
own desktop wallpaper.

PR:             ports/139716
Submitted by:   Kirn Gill <segin2005 at gmail.com>