Fix brand auth loop name
Merge pull request #522 from lovenunu/patch-1

Fix brand auth loop name
Fixes issue [#520](https://github.com/thelia/thelia/issues/520)
Add in loop ProductSaleElements the order argument

add order arguments 'min_quantity' and 'max_quantity'
change min_quantity & max_quantity

change :

min_quantity by quantity
max_quantity by quantity_reverse
Merge pull request #525 from zzuutt/patch-5

Added sort order on quantity in ProductSaleElements's loop