Factorize code to generate a simulation from a scenario.
Flag scripts as executable.
Correct test.
Update to changes in OpenFisca-Core for declaring a formula column.
Cleanup setup & code. Add Makefile for tests.
Add output_period to formulas.
Simplify columns, formulas & tax-benefit systems.
Don't store entity class in columns anymore, to ease creation of reforms.
fix conflicts
Merge branch 'eraviart-master'