Mk/**tex.mk: Convert bsd.tex.mk to USES=tex

- Update all the consumers to use USES=tex
- USE_TEX=yes is the old way of writing USES=tex which has been removed
  and replaced in all ports
- Almost all of the USE_TEX features remains unchanged
- Some consumers had the same variables defined both in the mk
  infrastructure and also in the ports which have been removed from the
  ports as those are redundant.

In case any of the consumers are failing to build please make sure that
the nexessary USES=tex is there. Unlike previous USE_TEX=yes will no
longer load the required VARS for tex and related dependencies.

Reviewed by:	portmgr
Approved by:	portmgr (blanket)

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.

textproc: remove 'Created by' lines

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

  *  "Choe, Cheng-Dae" whitekid
  *  -
  *  <glewis@FreeBSD.org>
  *  <koshy@india.hp.com>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Aaron Dalton <aaron@daltons.ca>
  *  Aaron Straup Cope
  *  Aaron Straup Cope <ascope@cpan.org>
  *  Ache
  *  Adam Herzog <adam@herzogdesigns.com>
  *  Adam Weinberger <adamw@FreeBSD.org>

Remove # $FreeBSD$ from Makefiles.

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

With hat:	portmgr
Sponsored by:	Absolight

Remove Author from pkg-descr and white space fixes

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 T-V.

CR:		D509
Approved by:	portmgr (antoine)

- Support staging
- Use shebangfix

Fix properties on pkg-plist

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

- convert to the new perl5 framework
- trim Makefile header

Approved by:	portmgr (bapt@, blanket)

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.

-remove MD5

Bump PORTREVISION after open-mofit update

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

- update to jpeg-8

- Fix web site URL in pkg-descr

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

- Updated email address in my ports

Approved by:    alexbl (mentor)

Add textogif 1.1, a Perl script to convert LaTeX formulas into GIFs.

PR:             ports/92800
Submitted by:   Nicola Vitale   <nivit@email.it>
Approved by:    tobez