Reclamation: add billing_address_id to reclamation
Reclamation: Test for workflow (reclamation, order, delivery_order)
Reclamation: set record_links automatic after reclamation->save
Workflow: (sales/purchase) invoice → reclamation
Workflow: delivery_order ↔ reclamation
Workflow: order ↔ reclamation
Reclamation: sql-script for data tables and rose objects added
Also created all needed functions in SL/DB/Reclamation.pm, SL/DB/ReclamationItem.pm and SL/DB/ReclamationReason.pm