[-] BO : products comments impossible if quantity > 0

The pull request https://github.com/PrestaShop/PrestaShop/pull/219 makes the module not working properly in v1.5.4.1.
Indeed, after this change, the OosHook works as expected but now, as the product comments module is attached to the OosHook, comments information is only shown when the product is out of stock!
Merge pull request #541 from indesign47/patch-4

[-] MO : products comments impossible if quantity > 0