Moved DDD pattern interfaces to doman.shared

Made next expected activity persistent and derived on handling.

Better date handling in route assigment.

Added voyage to handling activity, where applicable.

Next expected activity is now visible in the tracking interface.

Now possible to change destination of a cargo.

Minor touchups of the web pages.

Fixed cloning of Date in a few places.

Explicitly roll back transaction if handling event registration fails.

Using single-parameter validation + message in more places (instead of arrays)

Creating sample data using domain objects and storing with Hibernate, for simplicity.

Estimated time of arrival is now a property of the Cargo aggregate.

Tracking web interface has new look for 1.1.

Admin interface shows more time related information.

Serverside now handles change of destination (no UI yet though)

Split out messagning infrastructure context to separate file.

Renamed Cargo.updateStatus() to deriveStatusFromHandling(), and split implementation to side-effect free functions.

Various minor fixes for the JFokus presentation.

Relation between Cargo and its complete delivery history (handling events) is now replaced by explicit repository lookup at the time of cargo status update.

The copy() method on value objects is removed.

All enums in the cargo are now value objects.