Merge branch 'develop' into NEW_odt_others_objects

.github/CONTRIBUTING.md

README.md

htdocs/accountancy/admin/index.php

htdocs/admin/index.php

htdocs/admin/modules.php

htdocs/comm/action/index.php

htdocs/comm/mailing/card.php

htdocs/comm/remise.php

htdocs/compta/sociales/card.php

htdocs/compta/sociales/class/chargesociales.class.php

htdocs/core/ajax/box.php

htdocs/core/boxes/box_actions.php

htdocs/core/boxes/box_activity.php

htdocs/core/boxes/box_bookmarks.php

htdocs/core/boxes/box_clients.php

htdocs/core/boxes/box_commandes.php

htdocs/core/boxes/box_comptes.php

htdocs/core/boxes/box_contacts.php

htdocs/core/boxes/box_contracts.php

htdocs/core/boxes/box_external_rss.php