Comestic edit
Use new pandas method inplace option
Fix pandas dependency in setup
Improve XML to JSON conversion and add creation of a CompactNode (Tree2Object replacement).
Fix error : test
Merge branch 'master' of https://github.com/LouisePaulDelvaux/openfisca-france

Conflicts:
	openfisca_france/data/zone_apl/zone_apl_imputation_data_reader.py