GREG-169: Add missing redirect

See merge request !234

Login with existing user and invite

See merge request !225

Issue: greg-105

Add the GNU General Public License version 3

See merge request !235

Fix typo in django-q tasks

See merge request !237

Allow manual handling of sponsors in import

See merge request !231

Make Guest Info page match sketches

See merge request !233

Update readme with deployment info

See merge request !236

Introduces the CEREBRUM_MANUAL_SPONSOR_UNITS settings variable which
contains a list of stedkode for units where sponsors are handled
manually.

Resolves: GREG-163

Convert orgreg import to task

See merge request !229

Removed and introduced some borders. Added some text. Increased the size
of icons.

Resolves: GREG-142

To reduce the amount of code and complexity of the service we move away
from a management command triggered by a cronjob, to a task handled by
django-q. Everything works the same way as before, but the management
command now schedules the task instead of doing it. Introduces the
ORGREG_SCHEDULE_TYPE settings variable controlling the scheduled when
scheduling the import using the management command.

Notify sponsors about ending roles

See merge request !227

Making guest invite screen more like Figma

See merge request !230

GREG-161: Search birthdate and name

See merge request !228

GREG-157: Reducing UIB header height based on feedback

See merge request !232

The setup has five parts:
- a new email template type
- a new django-q task for notifying
- a management command for scheduling the task periodically
- a new settings variable NOTIFIER_LIMIT for controlling the number of
  days into the future the notifier script should use for end date of
  roles.
- a new settings variable NOTIFIER_SCHEDULE_TYPE for controlling how
  often the notifier task should be scheduled when using the management
  command.

Resolves: GREG-162

GREG-157: Updating some UiB theming based on feedback from UI department

See merge request !226

Send mail to sponsor when guest finishes registration

See merge request !224

Move djangoq settings to base settings

See merge request !222

Updating language menu

See merge request !223

Done to make djangoq settings accessible in production.
The sync setting is changed to the default False value since the run
order of the tasks is not relevant for our use case.
Mail sending functions have gotten a sync argument to force the tasks to
complete before checking their consequences in tests.