All data from conf file are stored into conf->file->xxx

Multicompany should be ok to logon with no breaking sessions when disabled

htdocs/admin/perms.php

@@ -79,7 +79,7 @@ $db->begin();
 
 // Charge les modules soumis a permissions
 $modules = array();
-foreach ($conf->dol_document_root as $dirroot)
+foreach ($conf->file->dol_document_root as $dirroot)
 {
 	$dir = $dirroot . "/includes/modules/";