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.

math: remove 'Created by' lines

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

  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Aaron Dalton <aaron@daltons.ca>
  *  Alessando Sagratini <ale_sagra@hotmail.com>
  *  Alex Dupre <ale@FreeBSD.org>
  *  Alexey Dokuchaev <danfe@FreeBSD.org>
  *  Amarendra Godbole <amarendra.godbole@gmail.com>
  *  Anders Nordby <anders@FreeBSD.org>
  *  Andreas Fehlner (fehlner@gmx.de)
  *  Andrew L. Neporada <andrew@chg.ru>
  *  Andrey <gugu@zoo.rambler.ru>
  *  Andrey Zakhvatov

Remove # $FreeBSD$ from Makefiles.

Prevent collision on getline(3)
While here regen patches

Fix ports that confused the meaning of WRKDIR and WRKSRC.

PR:		204056
Submitted by:	mat
Reviewed by:	bapt
Sponsored by:	Absolight
Differential Revision:	https://reviews.freebsd.org/D2735

Cleanup plist

Rename math/ patch-xy patches to reflect the files they modify.

Unbreak

Convert m* to USES=zip

- Stagify
- Fix COMMENT

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

. fix build with clang (CFLAGS+=-Wno-return-type);
. trim Makefile headers.

- Get Rid MD5 support

For ports maintained by ports@FreeBSD.org, remove names and/or
e-mail addresses from the pkg-descr file that could reasonably
be mistaken for maintainer contact information in order to avoid
confusion on the part of users looking for support. As a pleasant
side effect this also avoids confusion and/or frustration for people
who are no longer maintaining those ports.

- The path to the .phy files was built up using un-zero'd memory, so it could
  (and did, for me) break in strange and unexpected ways.

- EOF on input (e.g., ^D) would cause it to loop forever.

PR:             ports/136060
Submitted by:   Matthew D. Fuller <fullermd@over-yonder.net>

Preemptively fix build for gcc 4.1.

PR:             ports/104130
Submitted by:   trasz <trasz@pin.if.uz.zgora.pl>

Remove USE_REINPLACE from ports starting with M

- Add SHA256

SIZEify.

De-pkg-comment.

Replace ${PERL} with ${REINPLACE_CMD}

PR:             39656
Submitted by:   Oliver Braun <obraun@informatik.unibw-muenchen.de>

portlint: remove extra whitespaces before end of line.    

Convert category math to new layout.  

Provide a cleaner looking do-build target.    

Oops, I didn't actually read the webpage.. PhysCalc is at version 2.4.   No
versioned distfile though.    

Add physcalc (unversioned), an extremely old (apparently first written   in
1990), but still quite useful and flexible calculator.  Basically it's  
units(1) on steroids.  Also added patches to make physcalc secure (who   knows,
someone might make a cgi interface to it); also allowed it to   actually read
its *.phy files in another directory.