Changes

- New : Option on extrafields to have them always editable regardless of the document status.

- New : Option on extrafields to have them always editable regardless of the document status.

- New : New module PrintIPP to print without opening document is available as stable.

- New : New module PrintIPP to print without opening document is available as stable.

- New : Introduce hidden option STOCK_WAREHOUSE_NOT_REQUIRED_FOR_SHIPMENTS to solve at no risk

- New : Introduce hidden option STOCK_WAREHOUSE_NOT_REQUIRED_FOR_SHIPMENTS to solve at no risk a missing control on missing warehouse.

        a missing control on missing warehouse.

- Fix: [ bug #1487 ] PAYMENT_DELETE trigger does not intercept trigger action

- Fix: [ bug #1487 ] PAYMENT_DELETE trigger does not intercept trigger action

- Fix: [ bug #1470, #1472, #1473] User trigger problem

- Fix: [ bug #1470, #1472, #1473] User trigger problem