Fix test_irpp (indentation error)
Merge pull request #83 from adrienpacifico/master

Fix test_irpp (indentation error)
Suggest "parent isolé" when family contains a single parent with children.
Working on reduction and credits d'impots
Fix bug in irrp_reductions. Rename data.py to data_old.py
Listing reductions d'impots for 2013. Formulas should be checked
Keeping old data
Fix missing total
Fix minor errors
Remove unnecesary fiels in data folder
Fix test_irpp bug by adding missing prlire
Typos & cleanup.
Correct datatrees generation.
Merge branch 'master' of https://github.com/openfisca/openfisca-france