Fix WWW in parent/child ports

Many of the WWW are overwritten later which means the wrong value
is used. This did not happen before where the children were either
 a) just using the pkg-descr from the parents
 b) or had their own separate pkg-descr with custom WWW

Use WWW?= in parents when the child's WWW is different.

Children that use the same WWW as the parent can just inherit it,
i.e., the child WWW can be removed.

Approved by:	portmgr (implicit)

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.

japanese: remove 'Created by' lines

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

  *  ABURAYER Rewsirow <pcs51674@asciinet.or.jp>
  *  Aaron Dalton <aaron@FreeBSD.org>
  *  Akinori MUSHA aka knu <knu@idaemons.org>
  *  Akito FUJITA <fujita@zoo.ncl.omron.co.jp>
  *  Andrew Pantyukhin <infofarmer@FreeBSD.org>
  *  Daichi GOTO <daichi@FreeBSD.org>
  *  Daisuke Kawahara <kawahara@pine.kuee.kyoto-u.ac.jp>
  *  David O'Brien (obrien@cs.ucdavis.edu)
  *  Eiji-usagi-MATSUmoto <usagi@ruby.club.or.jp>
  *  FUJISHIMA Satsuki <sf@FreeBSD.org>
  *  Fumihiko Kimura <jfkimura@yahoo.co.jp>

Remove # $FreeBSD$ from Makefiles.

Cleanup no longer needed CHMOD usage after r424898.

PR:		213743
Submitted by:	mat
Exp-run by:	antoine
Sponsored by:	Absolight

Update ports in the [i-m]* category to not use GH_COMMIT.

With minor cleanups to make things simpler.

With hat:	portmgr
Sponsored by:	Absolight

Update USE_GITHUB so it does not require GH_COMMIT.

Using this new scheme allows only setting the _tag_ or _commit hash_ in
GH_TAGNAME and not having to know the hash for a tag.  This scheme will
download a tarball that has a different checksum than before due to a changed
directory name for extraction.

The following MASTER_SITES are provided to retain the old checksum and
directory structure (that require GH_COMMIT):
  GH -> GHL
  GITHUB -> GITHUB_LEGACY

Differential Revision:	https://reviews.freebsd.org/D748
Submitted by:	amdmi3
Reviewed by:	mat, swills, antoine, bdrewery
With hat:	portmgr

Update to 20141220.
Change MASTER_SITES to GitHub.
Use nkf to generate dictionaries and data files.

PR:		ports/193305
Submitted by:	katsuyoshi.ohara@gmail.com

Cleanup plist

Support staging.

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

- Perl required also and patch stage

- convert to the new perl5 framework
- trim Makefile header

Approved by:	portmgr (bapt@, blanket)

Add cmigemo-dict, Dictionary for C/Migemo Japanese incremental search tool.