NewCategoryBuilder implements Builder.
Formatting.
Rework and document product creation in the backend.
Fix toString  in QueryDslImpl.
Migrate to product type supplier instead using inheritance.
Refactor PagedQueryResult, count parameter is not read from JSON but from the result list.
Catch error on missing product type for clean up in test.
Document unit test instantiation for products.
Let Builder extend Supplier.
Dealing with eventual consistency the hacky way in product integration test.
Update jackson mapper libraries.
Document query and delete for product.
Products package documentation, close #37.
Merge pull request #51 from sphereio/product-documentation

Product documentation