Fixing some fucntion to deal with entity heterogeneity
Merge pull request #103 from benjello/master

Fixing some fucntion to deal with entity heterogeneity
Minor modif and fix survey import
Suggest "PACSé" or "Marié" instead of "Célibataire" when foyer_fiscal contains 2 "declarants" without "statmarit".
Revert "Use numeric IDs for new "familles", "foyer-fiscaux" & "ménages" instead of uuid."

This reverts commit 2f4012e65edb778c951bccbc8ac78153f5ece81a.
Add i18n.
Don't modify a scenario when creating a simulation from it.
Creating SurveyScenario class
Dealing with some survey related issues
Advances in credits impots
Advances in credits impot
Creation of automatic tests for any variable in input (create_then_generate_json),
Automatic saving of a couple scenario/official result (generate_json)
Test all automatic saved scenarii (test_json)
Added some tests and minor advances in credits impots
Advances in reductions impots, creation of request_impots (ask to DGFiP the result of a simulation)
Correction of bugs
minor changes
minor changes
Add CMU-C and ACS computation
Remove unused variable
Fix sentence
Fix ACS majoration