Netboot test

news: Add tests for all news functionality

Js deprecated

The only user of format_filesize is visualize.js, move the code there to
reduce archewb.js which is loaded on multiple pages.

In 373a426c we removed the i686/x64_64 differences report and forgot to
remove the used JavaScript functions.

.attr() is deprecated in jQuery so use .prop() to switch the checkboxes.

Fix Foreignkey implicit on_delete on django < 2.0

Foreignkey used to implicitly be on_delete=models.CASCADE and has to be
explicit now.

Django deprecations

Use is_authenticated as an attribute.

MIDDLEWARE_CLASSES is deprecated in Django 1.10.

Update assignment_tag to simple_tag since the assignment_tag is
deprecated.

update to django 1.11.16

Add retire_user command

Add “rel” attribute to pagination links

coderkun authored Oct 07, 2018 and Jelle van der Waa committed Oct 21, 2018

Add the “rel” attribute for “prev” and “next” to the pagination links
of news and packages.

todolists: remove old_id from todolist model

Old todolist items contained an old_id to keep links working, these
items where most recenlty created 6 years ago. Since old todolists of a
long time ago aren't particularly interesting they will be removed.

Closes #141

Include an integration test, to test donor_import with a real maildir
file with a valid and invalid donor.

Add Arch Infrastructure Ansbile repo to the README

django is now called python2-django.

Clean up models on tearDown.

Tests extended