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.

- Add LICENSE_FILE
- Fix bad character in pkg-descr
- Update WWW

Approved by:	portmgr blanket

Introduce PHP flavors.

  Ports using USES=php:phpize, php:ext, php:zend, and php:pecl are now
  flavored.  They will automatically get flavors (php56, php70, php71, php72)
  depending of the versions they support (set with IGNORE_WITH_PHP).  As a
  consequence, ports using USES=pear and USES=horde are also flavored.

PR:		226242
Submitted by:	mat
Exp-run by:	antoine
Approved by:	portmgr
Sponsored by:	Absolight
Differential Revision:	https://reviews.freebsd.org/D14208

- Fix trailing whitespace in pkg-descrs, categories [a-f]*

Approved by:	portmgr blanket

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

With hat:	portmgr
Sponsored by:	Absolight

Convert to USES=pear

Stage support for pear classes and channels in the devel category

Reviewed by:	bapt, ports@
Tested with:	poudriere + diff on the content of generated packages

Update phing to 2.6.1

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

From the Phing homepage:

PHing Is Not GNU make; it's a PHP project build system or build tool based on
Apache Ant. You can do anything with it that you could do with a traditiona
build system like GNU make, and its use of simple XML build files and
extensible PHP "task" classes make it an easy-to-use and highly flexible build
framework.

Features include running PHPUnit and SimpleTest unit tests (including test
result and coverage reports), file transformations (e.g. token replacement,
XSLT transformation, Smarty template transformations), file system operations,
interactive build support, SQL execution, CVS/SVN/GIT operations, tools for
creating PEAR packages, documentation generation (DocBlox, PhpDocumentor) and
much, much more.

WWW: http://www.phing.info