FIX security bugs

htdocs/accountancy/bookkeeping/balancebymonth.php

htdocs/accountancy/customer/index.php

htdocs/accountancy/report/result.php

htdocs/accountancy/supplier/index.php

htdocs/asterisk/wrapper.php

htdocs/categories/traduction.php

htdocs/install/step4.php

htdocs/loan/calc.php

htdocs/loan/payment/card.php

htdocs/product/canvas/product/actions_card_product.class.php

htdocs/product/canvas/service/actions_card_service.class.php

htdocs/product/traduction.php