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.

devel/p5-IO-Callback: Update to 2.00

- Fix indent
- Sort PLIST

Changes:	https://metacpan.org/dist/IO-Callback/changes

*: re-assign kuriyama@s ports to the pool, commit bit safekept

With hat:	portmgr-secretary

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

Remove # $FreeBSD$ from Makefiles.

Remove all := from BUILD_DEPENDS, here are never needed.

While there, cleanup, and sort depends.

When build and run dependencies are the same, there are three ways to
avoid duplicating the list while not adding the framework added
BUILD_DEPENDS to the RUN_DEPENDS.  In order of preference, they are:

1) use RUN_DEPENDS to set BUILD_DEPENDS:

BUILD_DEPENDS=	${RUN_DEPENDS}
RUN_DEPENDS=	foo:bar/baz

2) create another variable and use it:

MY_DEPENDS= foo:bar/baz
BUILD_DEPENDS=	${MY_DEPENDS}
RUN_DEPENDS=	${MY_DEPENDS}

3) use BUILD_DEPENDS to set RUN_DEPENDS and force evaluation:

BUILD_DEPENDS=	foo:bar/baz
RUN_DEPENDS:=	${BUILD_DEPENDS}

Sponsored by:	Absolight

Update WWW

search.cpan.org is shutting down.
It will redirect to metacpan.org after June 25, 2018.

With hat:	perl

Fix license information for portgs that use "the same license as Perl".

Sponsored by:	Absolight

Remove ${PORTSDIR}/ from dependencies, categories d, e, f, and g.

With hat:	portmgr
Sponsored by:	Absolight

Change the way Perl modules are installed, update the default Perl to 5.18.

Before, we had:

  site_perl :           lib/perl5/site_perl/5.18
  site_perl/perl_arch : lib/perl5/site_perl/5.18/mach
  perl_man3 :           lib/perl5/5.18/man/man3

Now we have:

  site_perl : lib/perl5/site_perl
  site_arch : lib/perl5/site_perl/mach/5.18
  perl_man3 : lib/perl5/site_perl/man/man3

Modules without any .so will be installed at the same place regardless of the

- Upgrade to 1.12.

Support staging.

- Use USE_PERL5=modbuild

With hat:	perl

Add NO_STAGE all over the place in preparation for the staging support (cat:
devel part 3)

- convert to the new perl5 framework
- trim Makefile header

Approved by:	portmgr (bapt@, blanket)

- Upgrade to 1.10.

- Convert all remaining instances of BUILD_DEPENDS=${RUN_DEPENDS} or
  RUN_DEPENDS=${BUILD_DEPENDS} to use := which portlint has warned
  about for a while.

PR:             ports/168208
Approved by:    portmgr (miwi)

IO::Callback provides an easy way to produce a phoney read-only
filehandle that calls back to your own code when it needs data to
satisfy a read.  This is useful if you want to use a library module
that expects to read data from a filehandle, but you want the data to
come from some other source and you don't want to read it all into
memory and use IO::String.

WWW: http://search.cpan.org/dist/IO-Callback/