Added class MutableBehaviour.
Added builder to creator, partial commit.
Added support for parameters in as-methods in creators.
Check for null in asImmutable().
Added list builder.
Implemented set builder.
Added map entry builder.
Added map builder.
Implemented maker.
Added one comment per section.
Changed internal type for HairColor from int to String.
Implemented isRedHaired correctly.
Added attribute @Id in PersonState + method behaviours() in @TypeConverter.
Added PersonId and @Parameters, partial commit.
Removed class XFactory.Factory.
Generate fields.
Added == Fields ==.
Generate constant field"state" as "state_".
Added support for @Parameters in the creator grammar.