While we fix #107, which I think it's becoming rather important, I've added a "FIELD_NAME" constant in several actions where the action name matches the name of the field they are changing. Hopefully this will trim down confussion:

In Actions, the NAME should be referenced from the "views" package.

 the FIELD_NAME should be referenced within the actions package only (e.g. DeleteScene references InitialScene.FIELD_NAME because it may need to change the initial scene of the game).
This is needed for delete scene to work.

Surprisingly, this was missing! I guess in a previous PR I missed to commit this or I made a mistake while resolving conflicts...
Refactoring of FieldCommands. Now, the name of the fields are identified using an enum instead of strings
Moving the field names enum to the model