This reverts commit ba30cdb6.

guardian is not used and only serves as a backend to rules

Fixed mixed up JS/CSS in ANY_JS, turned off DEBUG

Fixed mixed up JS/CSS in ANY_JS, turned off DEBUG

Add yarn dependency "select2-materialize" in settings.py so that select2-materialize statics can be accessed from everywhere

Otherwise, use real-time updating (AlekSIS, by contract, is guaranteed
to be slow without Celery ;)).

- Rename school_information_processor to custom_information_processor for a more common use
- Add model_helper with material icons and colours from Hjelp

Close #136

- Remove lazy trans
- Make description much shorter

Close #192

Advances #139