Rename "Simulation" by "Legislation" (wip)
Merge branch 'master' into dev
Handle correct informations for legislations.
Call openfisca-web-api to validate user's JSON.
Add a public controller to give legislations' JSON
Refactor converters, questions, controllers.
Add requests requirement.
Fix parameter names.
Rename URL key.
Convert ObjectId to unicode.
Adapt legislations to refactoring.
Use type="text" for dates, add placeholder.
Add legislation_urls tab and converters.
Implement new form.
Fill api data with a legislation and year.
Remove "administrations" dropdown menu.
Change wording of "Sign In" and "Sign out" buttons.
Put simulation data/image out of forms tabs.
Move reset buttons and display a dialog to confirm reset.
Add a tree view of legislations to help users visualize it