Merge pull request #822 from FHenry/develop

...re/modules/commande/doc/doc_generic_order_odt.modules.php

...e/modules/facture/doc/doc_generic_invoice_odt.modules.php

...e/modules/project/pdf/doc_generic_project_odt.modules.php

.../modules/propale/doc/doc_generic_proposal_odt.modules.php

htdocs/includes/odtphp/odf.php

htdocs/opensurvey/adminstuds_preview.php

htdocs/opensurvey/fonctions.php

htdocs/public/paybox/paymentko.php

htdocs/public/paybox/paymentok.php

htdocs/public/paypal/paymentko.php

htdocs/public/paypal/paymentok.php