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.

One more small cleanup, forgotten yesterday.
Reported by:	lwhsu

Remove # $FreeBSD$ from Makefiles.

Fix recursive dependency issue with gmake.

Add a hard .error so I don't miss this again.

PR:		237979
Submitted by:	tcberner, adamw (based on)
Pointyhat to:	bdrewery

devel/ccache now needs those to build.

Update to 0.3.1
- Fix a segmentation faut with some manpages

PR:		223447
Reported by:	Ting-Wei Lan <lantw44@gmail.com>

Fix build on mips by enforcing c99

Update to 0.3

- improved portability
- add support for compressed info files (like provided by the emacs port) [1]

PR:		223028 [1]
Reported by:	 Yasuhiro KIMURA <yasu@utahime.org> [1]

Update to 0.2.6
Chaneges:
- Remove the dir file leftover if it is empty

Submitted by:	amdmi3

Update to 0.2.5
 - Add support for capsicum

Update to 0.2.4
Changes:
- Fixes typos

USE_GITHUB: For the new support, fix DISTNAME to be more consistent.

When using GH_TAGNAME the DISTNAME would have GH_PROJECT and GH_ACCOUNT in
it. When not using GH_TAGNAME it would not have this. Now both cases
will add in the GH_PROJECT and GH_ACCOUNT.

Add special care to ensure that the DISTVERSION is not added in twice. If
a port does GH_TAGNAME=v${PORTVERSION} it will be added in twice though. For
that case DISTVERSIONPREFIX=v should be set and no GH_TAGNAME should be used.

empty() is used rather than (!defined || !${}) to support fmake.

The purpose of setting DISTNAME at all in these cases is to make it more clear
that the distfile is from *GITHUB* and to avoid collisions if a project were
to be renamed or moved. Without adding in GH_PROJECT and GH_ACCOUNT then there
are real risks that collisions on filenames would happen on renamed or moved
projects, which is fairly common. A GITHUB-generated file may not match
a custom-rolled or git-archive-rolled distfile.

PR:		199069
With hat:	portmgr
Testing done:	All USE_GITHUB ports without GH_COMMIT were
checksum/fetch/extract/WRKSRC tested.

Update to 0.2.3 (get rid of autotools)

Update to 0.2.2
Changes:
Add a way to disable maintainance mode to avoid timestamp problem with peoeple
not in sync with ntp (this can happen on very fresh releases)

Update to 0.2.1
Changes:
- Fix typo [1]

PR:		193913
Submitted by:	takefu@airport.fm

Update WWW

Update to 0.2 (fdclosedir is only avaiable on FreeBSD 10+)

Add a minimal tool to regenerate GNU info page indexes