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-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

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-tables2: Update to 2.0.6

Changes since 2.0.3:

* Add optional 'table' kwarg to row_attrs callables.
* Fixed issue with wrong time format for TimeColumn.
* The "ValueError" raised if the QuerySet passed to a table instance did not
  match the value declared in Meta.model is now turned into a warning.
* Make sure the templates do not raise errors when thead/tfoot attributes
  are not defined.

https://github.com/jieter/django-tables2/blob/v2.0.6/CHANGELOG.md

Approved by:	mentors (implicit)

www/py-dj21-django-tables2: Update to 2.0.3

Notable changes since 1.21.2:

* Appearance of the paginators might be different from the current 1.x
  templates.
* Removed the template argument to the table constructor, use template_name
  instead.
* Stopped adding column names to the class attribute of table cells
  (<td> tags) by default.
* "verbose_names" derived from model fields are not passed through "title()"
  anymore, only the first character is converted to upper case. This follows
  Django's convention for verbose field names: "The convention is not to
  capitalize the first letter of the verbose_name. Django will automatically
  capitalize the first letter where it needs to."
* Many other bugfixes, for a full changelog see here:

https://github.com/jieter/django-tables2/blob/v2.0.3/CHANGELOG.md

Approved by:	miwi (mentor)
Differential Revision:	https://reviews.freebsd.org/D19159

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