Fix: A ton of bug on oscommerce interface by webservice

htdocs/langs/en_US/admin.lang

htdocs/langs/fr_FR/admin.lang

htdocs/oscommerce_ws/clients/index.php

htdocs/oscommerce_ws/clients/osc_customer.class.php

htdocs/oscommerce_ws/commandes/index.php

htdocs/oscommerce_ws/commandes/osc_order.class.php

htdocs/oscommerce_ws/includes/configure.php

htdocs/oscommerce_ws/index.php

htdocs/oscommerce_ws/produits/OSCvente.php

htdocs/oscommerce_ws/produits/categories.php

htdocs/oscommerce_ws/produits/index.php

htdocs/oscommerce_ws/produits/osc_product.class.php

htdocs/oscommerce_ws/ws_server/ws_articles.php

htdocs/oscommerce_ws/ws_server/ws_customers.php

htdocs/oscommerce_ws/ws_server/ws_index.html

htdocs/oscommerce_ws/ws_server/ws_orders.php

htdocs/oscommerce_ws/ws_server/ws_test.php