Finish PaidCommand spec
Add ShipCommand spec
Add ReceiveCommand spec
Add PurchaseCommand spec
Add OrderCommand spec
Add DetailsCommand spec
Add HelpCommand spec
Add ListCommand spec
Add TrackCommand spec
Fix ShipmentSpec
Add UpdateCommand spec
Add VersionCommand spec

And fix VersionCommand.run parameters.
Fix 0-index error in ShipmentList
Add ArchiveCommand spec
Add basic Configuration spec
Add to TODO