NoKnox — renaming Doorman

New card for WhoIsWho part of the application

Written by Jeroen

To avoid confusion in the future, the Face Recognition service for events will be renamed NoKnox. You do not have to knock, the door is opened automatically.

Several names were in the running before we decided on NoKnox (pronounced no-nox).

The entire codebase and URL will be changed the coming weeks to make the change.