[IMP] Change Generating Accounting Entries to something in stock_account which has a group as before, also stock_invoice_directly goes with it
[IMP] Improve the copying of products and make sure the orderpoints apply their copy method
[FIX] sale_order_dates: cannot concatenate str and timedelta objects
[FIX] ondelete cascade on product template of price history
[MERGE] stock_account, purchase: better usability in settings to install stock_account and manage options to use costing methods and invenotyr valuation