product to a customer invoice

automatic user date was not correctly et (We must set a date into PHP
server timezone area)
Fix: First param of select_date must always be forged with a dolibarr
date function and not time().
New: Add a page for tests.

into discount.

used for calculation.

feature was developed for 3.5 but was disabled (hidden) because of
a bug not possible to fix enough quickly for 3.5.0 release.

In some cases of improper use of the delete () function, the complete repertoire of propale objects, invoice or order was deleted.

Ex in agefodd module:
	$obj_link=new Propal($db);
        $obj_link->id=$agf->propalid;
        $resultdel=$obj_link->delete($user);

To prevent misuse of the function, the reference is not considered given