Also update rule to allow automatic solving.

Sale Packing List and Sale Invoice Transaction which are specialised by
getPreferredAggregatedSaleTradeCondition shall be managed in same way.

Disable obsoleted code and mark lack of implementation.

Realtime accounting does not change owner of resources.

Note: for now leave dirty strings, as refactoring is failing in case of too much
manipulation.

This allows to store all consumption/invoicing data from external parties.

Well, okay, implementation of tests are still dirty.

Uses portal integrations to store mappings of current delivery for person.

Uses hand crafted order builder to update quantity by adding.

Small simulation tree is required, so cut it down.

Set price to zero, as realtime accounting is priceless.

Use simplified specific Business Process.

No simulation are needed, so disable them.

Set price to zero, as realtime accounting is priceless.

Use simplified specific Business Process.

Prevent duplicated the complex mapping retrieval.

PaymentTransaction_getTotalPayablePrice returns negative value.

Make it sure that lines are always separated (split_on_line).
Took movements only from same invoice (first_causality_on_delivery).