[tryton-dev] Several issues for later split. (issue 736002)

[udo . spallek]

Reviewers: ,



Please review this at http://codereview.tryton.org/736002/

Affected files:
  M account/move.py
  M account/period.py
  M account_asset/asset.py
  M account_asset/purchase.py
  M account_invoice/invoice.py
  M analytic_account/line.py
  M calendar/calendar_.py
  M currency/currency.py
  M party/party.py
  M purchase/purchase.py
  M sale/sale.py
  M sale_opportunity/opportunity.py
  M sale_shipment_cost/stock.py
  M stock/inventory.py
  M stock/location.py
  M stock_forecast/forecast.py
  M stock_supply/order_point.py