[FIX] website_sale: no need to specific to a selection field that it is of type char

Besides, if set, the field will appear as a simple char field in the form view & editable lists
+ADD the type in the editable view
[FIX] website: use dom element instead of jquery class to click input file

For some reasons, the browser will prevent to open the system file browser when clicking the input file with javascript using the jquery class element, but it works when using the standard js dom element.
[FIX] Do not lose session.db on authentication error
[IMP] point_of_sale: add constraint on company

Using a payment method belonging to another company will raise errors when closing the session.
To avoid being stuck at session closing, forbid to create a POS using a journal of another company.
[FIX] mrp: traceability of production

When consuming product, the main_production_move is set as the source of production (used for consumed_for parameter)
However the method action_consume now (since 661a204) returns the new moves (when spliting) instead of the original one. This means that the tracebility would fail.
[FIX] project: Overpassed Deadline computation

The field delay_endings_days represents the number of days since the deadline.
This field was using the write_date instead of now to compute it and was using the absolute value (so project in advance would also get overdue days
[FIX] Correct price correction courtesy of richard_willowit #2983 #2985