LDEV-2524 Implementing the compulsory question option. Make the question object more complex so we don't have a new map for every field added, and ensure all the necessary data is set up when we redisplay a screen with the error message.
LDEV-2578 Make questions appear in their display order, not in the database order, in authoring and monitoring.
LDEV-2581 Make sure the rich text field setting is honoured for more than just the first screen!
