Add legislationsxml module to replace parameters module.
Add legislations module that handles legislative parameters in JSON format.
Cleanup code.
Correct copy/paste error.
Ensure that dates of values in legislation parameters are consecutive.
Add functions to generate the JSON of the legislative parameters at a given date.
Correct function parameter name.
Temporarily disable the verification that the date are consecutive in values of legislative parameters.
Re-enable tests on dates when validating legislative parameters files.
Move enumerations in their own module.
Move baremes into their own module.
Remove unused function "lower_and_underscore".
Reorder and cleanup functions.
Rename utils module to statshelpers.
Change "src.countries.france" to "openfisca_france".
Change Enum module.
Rename tranches to bareme. Remove camelCase from parameters.Node attributes.
Use None instead of 'none' for value_format & value_type attributes of parameters.Node.