We add a common method to round prices that are stored using the price digits.
It is useless to use the digits from the field because it can not be changed in
any other way than by configuration.
issue9146
review299521002
We add the flake8 configuration used so we ensure everyone uses the same.
We remove the usage of __all__ for non public API.
When possible, we rationalize the class name according to its __name__ and module.
issue9082
review297061002
Works can be created when the production is already running so the state must
be computed to no more be the default 'request' state otherwise it is not
possible to add cycles.
issue6720
review40751004
Sergi Almacellas Abellana