[*] BO: hide hooks without module
[*] BO: move validateImportation() JS function
Correct bug for customization

When a customization was done on a lower PS version, $id_address_delivery is set to 0 for the customization.
Update Product.php
Update Product.php
// #PSCSX-1463 w3c
// #PSCSX-1463 w3c
// w3c
Merge pull request #1704 from PrestaEdit/validateImportation

[*] BO: move validateImportation() JS function
Merge pull request #1669 from PrestaEdit/patch-70

[*] BO: hide hooks without module
Update Product.php
Merge pull request #1921 from djbuch/patch-6

[-] FO : addCustomizationPrice retrocompat
//w3c
// default-bootstrap - product.tpl: punctuation
// blockwishlist-extra.tpl: wording
Merge pull request #1939 from AlexEven/patch-1

// default-bootstrap - product.tpl: punctuation
Merge pull request #1940 from AlexEven/patch-2

// blockwishlist-extra.tpl: wording
[*] Core: Mobile_Detect upgrade to 2.8.2
// #PSCSX-1463 w3c
Merge branch '1.6' of https://github.com/PrestaShop/PrestaShop into 1.6