Added Jackson 2 dependencies. Doubly annotated representation model classes with both Jackson 1 and Jackson 2 annotations. Added Integration tests for Jackson 2 marshaling provided by Jon. Polished template.mf.
Added correct equals(…)/hashCode() methods to PagedResource, PageMetadata. Polished toString() methods of ResourceSupport, Resource, Resources and PagedResources. Added factory method to PagedResources to easily create a plain instance from a set of entities.
Introduced Resource and Resources value objects. The former captures single entity instances but adds links to it. The latter does the same for a collection of entities. Added SPI interfaces ResourcePostProcessor and ResourcesPostProcessor to allow manipulating Resource and Resources instances.
