factorized document actions

htdocs/adherents/document.php

htdocs/comm/action/document.php

htdocs/comm/propal/document.php

htdocs/commande/document.php

htdocs/compta/deplacement/document.php

htdocs/compta/facture/document.php

htdocs/compta/sociales/document.php

htdocs/contrat/document.php

htdocs/core/tpl/document_actions.tpl.php

htdocs/fichinter/document.php

htdocs/fourn/commande/document.php

htdocs/fourn/facture/document.php

htdocs/product/document.php

htdocs/projet/document.php

htdocs/projet/tasks/document.php

htdocs/societe/document.php