Merge branch 'develop' of https://labs.maarch.org/maarch/MaarchCourrier into develop

...rch_entreprise/js/angular/app/signature-book.component.js

...rch_entreprise/js/angular/app/signature-book.component.ts

apps/maarch_entreprise/js/angular/main.bundle.min.js

apps/maarch_entreprise/lang/en.php

apps/maarch_entreprise/lang/fr.php

...aarch_entreprise/template/documents_list_attachments.html

modules/entities/xml/IVS/validation_rules.xml

modules/visa/Controllers/VisaController.php

modules/visa/js/functions.js

sql/data_fr.sql