Add rattachement.py which calculate what the best split in foyers fiscaux for youngs is.
Add tests for RPNS and minor changes in RPNS.
Minor changes in RPNS, correction of bugs in json files, added .json tests
Almost finished RPNS
Almost finished RPNS
Added dates for variables (not finished), corrected some bugs, added comments
Added dates of start and end to input variables (to finish what i've started).
Sinon ça a donné quoi la réunion avec la DGFiP ?
Merge branch 'master' of https://github.com/bixiou/openfisca-france into bixiou-master

Conflicts:
	openfisca_france/model/irpp.py
	openfisca_france/tests/create_json_then_test.py
	openfisca_france/tests/generate_json.py
Merge branch 'bixiou-master'