Update mouvementstock.class.php

return mouvement id instead simply "1", i need to store the movement id on my factory modules (to update it at the end of the build process if it's need)

htdocs/product/stock/class/mouvementstock.class.php

@@ -265,7 +265,7 @@ class MouvementStock
 		if (! $error)
 		{
 			$this->db->commit();
-			return 1;
+			return mvid;
 		}
 		else
 		{