Remove expired ports:

2020-01-31 www/py-dj21-django-auth-ldap: Django 2.1 is now End-of-Life (Since
December 2 2019) and no longer supported. Switch to Django 2.2+ versions of this
port as soon as possible
2020-01-31 www/py-dj21-django-crispy-forms: Django 2.1 is now End-of-Life (Since
December 2 2019) and no longer supported. Switch to Django 2.2+ versions of this
port as soon as possible
2020-01-31 www/sogo3-activesync: Deprecated, replaced by www/sogo4
2020-01-31 devel/sope3: Deprecated, replaced by devel/sope4
2020-01-31 www/py-dj21-django-mptt: Django 2.1 is now End-of-Life (Since
December 2 2019) and no longer supported. Switch to Django 2.2+ versions of this
port as soon as possible
2020-01-31 graphics/py-willow11: Use graphics/py-willow instead
2020-01-31 www/py-dj21-django-tables2: Django 2.1 is now End-of-Life (Since
December 2 2019) and no longer supported. Switch to Django 2.2+ versions of this
port as soon as possible
2020-01-31 www/py-dj21-django-debug-toolbar: Django 2.1 is now End-of-Life
(Since December 2 2019) and no longer supported. Switch to Django 2.2+ versions
of this port as soon as possible
2020-01-31 security/krb5-115: EOL one year after the release of krb5 1.17
2020-01-31 www/py-dj21-django-taggit: Django 2.1 is now End-of-Life (Since
December 2 2019) and no longer supported. Switch to Django 2.2+ versions of this
port as soon as possible
2020-01-31 www/py-dj21-django-cors-headers: Django 2.1 is now End-of-Life (Since
December 2 2019) and no longer supported. Switch to Django 2.2+ versions of this
port as soon as possible
2020-01-31 graphics/py-imgurpython: No longer supported by upstream
2020-01-31 www/py-dj21-django-taggit-serializer: Django 2.1 is now End-of-Life
(Since December 2 2019) and no longer supported. Switch to Django 2.2+ versions
of this port as soon as possible
2020-01-31 www/py-dj21-django-filter: Django 2.1 is now End-of-Life (Since
December 2 2019) and no longer supported. Switch to Django 2.2+ versions of this
port as soon as possible
2020-01-31 www/py-dj21-django-timezone-field: Django 2.1 is now End-of-Life
(Since December 2 2019) and no longer supported. Switch to Django 2.2+ versions
of this port as soon as possible
2020-01-31 devel/py-xarray011: Use devel/py-xarray instead
2020-01-31 www/py-django-modelcluster4: Use www/py-django-modelcluster instead
2020-01-31 devel/py-semantic_version26: Use devel/py-semantic_version instead
2020-01-31 www/py-dj21-django-js-asset: Django 2.1 is now End-of-Life (Since
December 2 2019) and no longer supported. Switch to Django 2.2+ versions of this
port as soon as possible
2020-01-31 www/py-dj21-drf-yasg: Django 2.1 is now End-of-Life (Since December 2
2019) and no longer supported. Switch to Django 2.2+ versions of this port as
soon as possible

www/py-django-{dj21,dj22}-cors-headers: Update to 3.2.0

Notable changes since 3.0.2:

* Drop Python 2 support, only Python 3.5-3.8 is supported now.
* Support the value "file://" for origins, which is accidentally sent by
  some versions of Chrome on Android.

https://github.com/adamchainz/django-cors-headers/blob/3.2.0/HISTORY.rst

www/py-django21 (and dj21 ports): Deprecate / set expiration date

Django 2.1 reached its End-of-Life (EoL) on 2nd December. Deprecate the port
and its consumers (= www/py-dj21-*) accordingly.

Set the expiration date to the end of January 2020 to give users enough time
to migrate to Django 2.2+ because the EoL is already onset and the
deprecation comes quite late.

Reviewed by:	koobs (python: maintainer)
Approved by:	koobs (python: maintainer)
Differential Revision:	https://reviews.freebsd.org/D22668

www/py-{dj21,dj22}-django-cors-headers: Update to 3.0.2

Changelog:

https://github.com/ottoyiu/django-cors-headers/blob/3.0.2/HISTORY.rst

net-mgmt/netbox: Update to 2.5.12 and switch to Django 2.2

Upstream decided to switch from Django 2.1 to the 2.2 LTS release to fix a
rather annoying bug that generated intermittent errors when objects were
deleted/manipulated.

Therefore the same procedure must be done in almost the same way as in
r492690 to make NetBox compatible with Django 2.2 in the ports tree.

That means to repocopy the required Django 1.11 ports, assign them to
Django 2.2, limit them to Python 3.5+ and update all related
CONFLICTS_INSTALL entries accordingly:

* www/py-dj22-django-cors-headers [1]
* www/py-dj22-django-debug-toolbar

www/py-dj21-django-cors-headers: Update to 2.5.2

While I'm here:
* Make port architecture neutral by adding NO_ARCH

Changelog since 2.4.0:

* Improve inclusion of tests in sdist to ignore .pyc files.
* Include test infrastructure in sdist to allow consumers to use it.
* Drop Django 1.8, 1.9, and 1.10 support. Only Django 1.11+ is supported
  now.
* Fix DeprecationWarning from importing collections.abc.Sequence on
  Python3.7.

https://github.com/ottoyiu/django-cors-headers/blob/2.5.2/HISTORY.rst

Approved by:	mentors (implicit)

Create some ports that are assigned to Django 2.1 instead Django 1.11.

Django 1.11 is currently the "default" version in the ports tree due its
long term support until April 2020 thus ports that are assigned to that
version will exist until then.

The following packages are required to make the upgrade of net-mgmt/netbox
to 2.5.x possible because upstream has decided to switch from Django 1.11
to Django 2.1:

* www/py-dj21-django-cors-headers
* www/py-dj21-django-debug-toolbar
* www/py-dj21-django-filter
* www/py-dj21-django-js-asset
* www/py-dj21-django-mptt