- Introduce new Blob and Clob value types into the applib, wrapping a byte or char along with a MimeType.
- enhance core metamodel/progmodel, adding facets
- teach JDO objectstore how to persist these types
- add new components in wicket viewer to allow a file to be uploaded / persisted (eg a property of type Blob/Clob)
- add new facility in wicket viewer to download blob/clobs (eg an action returning a Blob/Clob)