Add bootstrap as a gem.
Add bootstrap configuration.
Review application layout with lateral menu and submenu for views.
Sort transactions by desc date.
Review table of transactions.
Implémente la suppression de transaction.
Ajoute un lien pour supprimer une transaction.
Add a gem for debugging.
Refactor transaction view with a partial.
Add tests on ApplicationHelper.
Updates view for transaction registration.
Complete tests of transaction controller.