Fix: rename dol_file_exists to dol_buildpath

htdocs/includes/menus/standard/auguria.lib.php

htdocs/includes/menus/standard/eldy.lib.php

htdocs/lib/company.lib.php

htdocs/lib/contact.lib.php

htdocs/lib/contract.lib.php

htdocs/lib/fichinter.lib.php

htdocs/lib/fourn.lib.php

htdocs/lib/functions.lib.php

htdocs/lib/invoice.lib.php

htdocs/lib/member.lib.php

htdocs/lib/order.lib.php

htdocs/lib/prelevement.lib.php

htdocs/lib/product.lib.php

htdocs/lib/project.lib.php

htdocs/lib/propal.lib.php

htdocs/lib/sendings.lib.php

htdocs/lib/stock.lib.php

htdocs/lib/usergroups.lib.php

htdocs/main.inc.php