7.0 metafiles
OCB branch also in tests.
Merge pull request #7 from pedrobaeza/7.0-metafiles

7.0 metafiles
Added purchase landed cost extended module.
- Allows landed cost in multi currency
- Allows to add landed cost on confirmed PO
- SQL report is not finished since it does not support the multi currency
- Added a wizard to generate landed cost invoices.
Merge branch 'add-purchase_landed_costs_extended' of https://github.com/ajite/purchase-workflow into HEAD