Remove useless import.
Rework preloading of zone_apl to work with new syntax-based formulas.
Fixing decompositions / refactoring cotsal et cotpat
Remove unwanted print
Fix to pass test_cotsoc_fonc and test_fiche_de_paie
Again
Fixing bug for non individual cases
Remove test on date in formula, because it is already defined in column definition.
Sort functions.
Correct name of variable.
Don't fail when computing age with a period of size > 1.
Move test on date in formula to column declaration.
Rename variable once again.
Add missing import.
Move import outside of formulas and cleanup code.
Add return to gipa formula.
Remove duplicate "+".
Use period.date instead of period.start in "age" formula.
Comment out unused global.
Move import outside of formula.