* Enable `extra_params` in formulas with new syntax.
4.1.4beta
* Fixup 4.1.2: * When building positions, handle cases where persons belonging to an entity are not grouped by entity in the persons array.
4.1.3beta
* Fix bug in entity.sum
4.1.2beta
* Enable simulation initialization with only legacy roles * New roles are in this case automatically inferred * Positions are always inferred from persons entity id
4.1.1beta
* Fix update_legislation in reforms
4.1.0beta
* Add `conflicts` and `origin` fields to xml params (needed for baremes IPP importation)