Make board/committee description an HTMLField

Closes #543

See merge request !706

Allow span with text-decoration by bleach

Closes #564

See merge request !707

Add reference to Oswald to the styleguide

Closes #430

See merge request !705

Add inline for pizza events to events app

Closes #555

See merge request !708

Add automatic response to mailinglists

Closes #285

See merge request !709

Move statistics code to services, separate tests into multiple files and add display name tests

Closes #200

See merge request !710

Fix Sphinx version and update docs

See merge request !711

Prevents sudden breakage of the build

Wait for correct db in entrypoint

See merge request !693

Push tags in release.sh and update docker dependencies

See merge request !703

Fix typo in release.sh

See merge request !701

Increment Django release for security update

See merge request !699

Fix #565 hopefully

Closes #565

See merge request !697

Fix issue with date and 403 on books page

See merge request thalia/concrexit!691

Fix missing field in admin for partner events

See merge request thalia/concrexit!692

Fix auth token for JSON requests

See merge request !690

Add photos API

See merge request !671

Add field for pizza events to the Event serializer

See merge request !687

Add text about mailing the paparazcie for a full resolution photo

Closes #530

See merge request !686

Update requirements and fix icon generation in fixtures

See merge request !688

They're generated as PNG, but the model doesn't like that very much.
Somehow the form fields handle this correctly though. I suspect content
type isn't passed around correctly.

Release script to facilitate the release procedure

See merge request !685