Improper use of delete() function and ldap with multientity bug corrections

This solve bug of rounding with total price when we need a unit price.
This solve lso bug of rounding on non decimal basis that we don't want.
Also this remove calling database when not usefull so make possible to
call this function into fetch (this remove the FIXME not into comment
so).

Conflicts:
	htdocs/core/tpl/objectline_edit.tpl.php

Conflicts:
	htdocs/commande/liste.php

name of triggers.

should be checked

Conflicts:
	htdocs/commande/liste.php

Conflicts:
	htdocs/comm/prospect/list.php
	htdocs/langs/en_US/bills.lang

Corrected translation

Conflicts:
	build/makepack-dolibarr.pl

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

product->stock_warehoure[], we must call product->load_stock() after the
product->fetch().