Getting bouvard's modifications
Remove obsolete line.
Regenerating datattrees
fix alloc in irpp (alloc. familiales imposables)
Fix bug in alloc
Comment out non working tests.
Fixes various casts
Beginning of inclusion of Laurence changes (BROKEN)
Adding Laurence changes. Still WIP (BROKEN)
bouvard midfs added
Adding bouvard modifications (complete prvious commit)
Finsih inclusion of bouvard modifs
Generation of datatrees
Don't reuse existing columns in datatrees when they belong to the wrong entity.
Regenerate datatrees with new script.
Add survey support and use it for IPP.
Rework IPP test to use new survey API.
Code cleanup.
Ensure that a new instance of Scenario is created each time the converter is called.
Fixing test_niches after changes in data.py