Start decomissioning some latex ports

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. Categories P-S.

CR:		D422
Approved by:	portmgr (bapt)

Fix properties on pkg-plist

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

Rectify USE_TEX to support both of teTeX and TeXLive.

TEX_DEFAULT:
	A knob to choose teTeX or TeXLive.  One can specify in /etc/make.conf.

USE_TEX:
	A knob for port developers.  Valid keywords are listed in
	bsd.tex.mk.

Remove *_DEPENDS from ports which depend on teTeX and add USE_TEX=tetex
instead to make migration to TeXLive easier.

- update png to 1.5.10

- Kick MD5 Support

- update to 1.4.1
Reviewed by:    exp8 run on pointyhat
Supported by:   miwi

- update to jpeg-8

- bump all port that indirectly depends on libjpeg and have not yet been bumped
or updated
Requested by:   edwin

- Welcome X.org 7.2 \o/.
- Set X11BASE to ${LOCALBASE} for recent ${OSVERSION}.
- Bump PORTREVISION for ports intalling files in ${X11BASE}.

SHA256ify

Approved by: krion@

Add teTeX-3.0 support and mark IGNORE in ones which are already included
in the new teTeX distribution.

- Fix dependencies.  LaTeX packages now need to depend on
  print/teTeX-base, not print/teTeX.

- Use share/texmf-local instead of share/texmf.

- Some style fixes.

Approved by:    linimon (mentor)

Add size data, approved by maintainers.

Add latex-subfloat 2.14.20030821,

latex-subfloat enables subnumbering of different floats
(figures and tables) simular to the subequations-environment of
the amsmath package. It does not the same as the subfigure
package which generates subfigures within one normal figure.

PR:             ports/62035
Submitted by:   hrs@FreeBSD.org