Check simulation only once.

Drop Sale Order expanding, as no Sale Orders are going to be present.

Switch alarm to expand *and* solve causality state in same moment. See
9d1b92cc which is changing causality state
on delivery state change.

Update test to reflect the change.

Check SimulationMovement_buildSlapOS no-op behaviour on delivered Simulation
Movement.

Check behaviour of Delivery_updateCausalityState in case of been called on
documents with various states.

Also deliver immediately.

Also drop 91761c1a, as in SlapOS deliveries
are not merged together.

Nevertheless 91761c1a introduced serious bug: as root_applied_rule.getPath
was not passed, searchMovementList from builder was returning a lot of
movements in case of system which has this alarm disabled, thus resulting in
enormous transaction per SimulationMovement_build*.

Even worse: passing path and explanation is mutually exclusive, as path is
internally recalculated by explanation.

This is workaround for some bugs in setters, which are irrelevant for testing.

Originally system would create compensation movements in case of difference on
frozen movements, but this is explicitely disabled.

The history of Hosting Subscription is fully written before alarm can chance to
run.