Simplify the logic to find which Hosting Subscription changed.

Test can leave transaction in erroneous state, revert it.

tag has been removed.

Expanding does not depend on movement state.

True is True, when False if False.

This builder *shall* create deliveries.

No divergency should occur in the automated slapos business process.

fixConsistency can be called twice in the same transaction.

Packing List does not control instance state.

No purchase packing list are created with the software installation.

Slaptool should not try to update Packing List state.

afterSetUp logs as superuser, do not repeat it.

Thanks to this running tests outside of Zope has similar conditions: Manager
is used.

Set more properties on invoice, as there are not merged anymore.

Drop delivery select method, as there is no need to merge invoices.

Invoicing Software Installation usage can be done with a global alarm if needed
(as done for Software Instance).