converters/ocaml-jsonm: update the port to version 1.0.2

- Drop dependency on `uchar' and `bytes' compatibility modules
- Remove needless knobs and fix Makefile formatting while here

Reported by:	portscout

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.

*: bump PORTREVISION of all devel/xxhash users...

...except archivers/py-borgbackup, which requires a more complete fix.

converters: remove 'Created by' lines

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

  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Akinori MUSHA aka knu <knu@idaemons.org>
  *  Alex Keda <admin@lissyara.su>
  *  Alex Semenyaka <alex@rinet.ru>
  *  Alexandr Kovalenko <never@nevermind.kiev.ua>
  *  Andreas Klemm <andreas@klemm.gtn.com>
  *  Andrey A. Chernov <ache@FreeBSD.org>
  *  Anton Berezin <tobez@FreeBSD.org>
  *  Blaz Zupan <blaz@amis.net>
  *  Brent J. Nordquist <bjn@visi.com>
  *  Carlos J. Puga Medina <cpm@fbsd.es>

converters/ocaml-jsonm: update the port to version 1.0.1 and

- Chase HTTP/1.1 301 redirection when fetching the distfile
- Update license (ISCL), assume maintainership of the port
- Use provided build scripts instead of performing it manually
- Convert to static pkg-plist, 16 lines don't warrant dynamic

devel/ocaml-uutf: (required) update the port to version 1.0.2
and make changes similar to the above;

devel/ocaml-topkg: call `do-build' recipe in ${BUILD_WRKSRC}.

Remove # $FreeBSD$ from Makefiles.

Update OCaml to version 4.05.0 (this is the last version where strings
are unsafe by default, which is the main motivation why it was picked,
but not the very latest one) and synchronize the rest of the stack and
dependent ports with it, particularly:

  - Update `devel/ocaml-ocamlbuild' to version 0.14.0 and unbreak,
    register build dependency on all ports that require it (should
    be part of USE_OCAML, but we do not want to make any Mk-related
    changes the for time being)
  - Update `devel/ocaml-camlp4' to version 4.05+2
  - Update `devel/ocaml-camlp5' to version 7.07 (the project had
    moved to GitHub)
  - Mark `devel/ocaml-deriving-ocsigen' as BROKEN for now, it is
    very outdated and requires quite a lot of work
  - Update `x11-toolkits/ocaml-labltk' to version 8.06.3

PR:		218333
Exp-run by:	antoine

Reset vg@'s ports after he resigned.

With hat:	portmgr-secretary

Remove ${PORTSDIR}/ from dependencies, Mk and categories a, b, and c.

With hat:	portmgr
Sponsored by:	Absolight

New port: converters/ocaml-jsonm

Jsonm is an OCaml non-blocking streaming codec to decode and encode the
JSON data format. It can process JSON text without blocking on IO and
without a complete in-memory representation of the data.

The uncut codec also processes whitespace and (non-standard) JSON with
JavaScript comments.

WWW: http://erratique.ch/software/jsonm