Fix CONFLICTS entries of multiple ports

There have been lots of missing CONFLICTS_INSTALL entries, either
because conflicting ports were added without updating existing ports,
due to name changes of generated packages, due to mis-understanding
the format and semantics of the conflicts entries, or just due to
typoes in package names.

This patch is the result of a comparison of all files contained in
the official packages with each other. This comparison was based on
packages built with default options and may therefore have missed
further conflicts with optionally installed files.

Where possible, version numbers in conflicts entries have been
generalized, some times taking advantage of the fact that a port

framework: Add new USES 'magick' for graphics/ImageMagick*

A new USES has been added to depend on ImageMagick.

	USES=magick

adds a LIB_DEPENDS on graphics/ImageMagick${IMAGEMAGICK_DEFAULT}.

If a specific version is required, use for example

	USES=magick:6        resp.     USES=magick:7

If only a build, run or test is required, use for example

	USES=magick:build    resp.     USES=magick:6,build,test

Remove # $FreeBSD$ from Makefiles.

Drop python 2.7 support from a few ports

With hat:	portmgr

Bump a few PORTREVISIONs after r498529

With hat:	portmgr

Update ImageMagick to 6.9.10.14 [1]

* Add PKGNAMESUFFIX and rename the directory. This was done to show
  that IM6 is not the "main" version. But still fully supported by upstream.
* Convert a number of options to optionhelpers.
* Add option for ISO/IEC 23008-12:2017 HEIF suport
* Add comment to pkg-descr explaining IM6's "legacy" tag.
* Add comment to the patch-config_policy.xml file why it still needed.

Please note that IM7 is not a drop in replacement due to library API and
command arguments changes. And as a result ports need to decide for themself
which version to use.

Chase these changes in all the ports that using IM6.

PR:		225102 (based on, only the version update) [1]
Submitted by:	Pascal Christen <pascal.christen@hostpoint.ch>

Convert Python ports to FLAVORS.

  Ports using USE_PYTHON=distutils are now flavored.  They will
  automatically get flavors (py27, py34, py35, py36) depending on what
  versions they support.

  There is also a USE_PYTHON=flavors for ports that do not use distutils
  but need FLAVORS to be set.  A USE_PYTHON=noflavors can be set if
  using distutils but flavors are not wanted.

  A new USE_PYTHON=optsuffix that will add PYTHON_PKGNAMESUFFIX has been
  added to cope with Python ports that did not have the Python
  PKGNAMEPREFIX but are flavored.

  USES=python now also exports a PY_FLAVOR variable that contains the

graphics/curator: remove optional dependency on graphics/py-imaging

The script itself needs to be adjusted to use graphics/py-pillow

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

With hat:	portmgr
Sponsored by:	Absolight

- Convert ports of graphics/ to new USES=python

Approved by:	portmgr (implicit)

Stage support

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

Style: tab -> space.

Most contributors copy an existing port when writing their own so reduce the
number of bad examples in the tree.

Conver to new options framework

- update png to 1.5.10

-remove MD5

- update to 1.4.1
Reviewed by:    exp8 run on pointyhat
Supported by:   miwi

- update to jpeg-8

- Retire MASTER_SITE_SOURCEFORGE_EXTENDED, it's no longer needed - all mirrors
actually have all distfiles
- Merge all SF mirrors to MASTER_SITE_SOURCEFORGE, resort according to quick
download speed survey
- Fix MASTER_SITES for all port that have used SOURCEFORGE_EXTENTED

Approved by:    portmgr (pav)

Drop maintainership for ports I haven't used for quite a while.

- Welcome X.org 7.2 \o/.
- Set X11BASE to ${LOCALBASE} for recent ${OSVERSION}.
- Bump PORTREVISION for ports intalling files in ${X11BASE}.

Convert MAINTAINER to my freebsd.org account.

SHA256ify

Approved by: krion@

Chase libversion bumb to libMagick.so.9

PR:             ports/91270

Add curator, a powerful script that allows one to generate web page image
galleries with the intent of displaying photographic images on the Web, or for
a CD-ROM presentation or archiving.

PR:             ports/68624
Submitted by:   Stefan Walter <sw@gegenunendlich.de>