New class EntityToPerson, to replace calls to methods cast_from_entity_to_role & cast_from_entity_to_roles.
New class PersonToEntity, to replace methods filter_by_role, any_by_roles & sum_by_entity.
Allow parallel axes in scenarios.
Reuse existing variable.
New function assert_near, moved from OpenFisca-France.
Add tests on parallel axes.
Improve handling of PersonToEntity.operation when entity has only 1 roles_count.
Add support for cerfa_field in columns syntactix sugar.
When adding booleans, convert them to integers.
Handle cloning of columns with required arguments in constructor.
Don't fail when legislation JSON is None in tax-benefit system. Add LegislationLessTaxBenefitSystem.
Remove useless code.
Improve new syntax for alternative formulas and add test.