List type converters should be able to reuse existing lists on target fields. This is important for Hibernate integration. This is done by default, but can be switched off. This release does not require an actual field on the domain object; accessors should be enough. It allows polymorphism on transfer objects. It adds an option to ListTypeConverter for whether null should be kept or converted to an empty list. It adds convertList(), which converts a list of objects. It allows sorting in ListTypeConverter.
A demo module was added that uses Hibernate and Lombok. Conversion now uses getters and setters on the domain objects, as this is needed to avoid problems with Hibernate lazy loading. Collections need special handling; this release adds a base type converter that accepts the type of the transfer objects. It adds a type converter that updates linked objects but does not update objects in the domain. This is very practical or controlling links between objects without allowing the objects themselves to be modified.
