[*] MO : crossselling - moved javascript include into header hook.
[-] MO : crossselling - Added in condition to test element is present.
[-] BO: don't have the delivery PDF - User can define which statuses show the delivery PDF
[-] FO: need id_product_attribute to know quantity
Update classes/cache/CacheMemcache.php
[-] FO: rtl.css was missing on default theme
// small fix
[-] FO : Countries in invoice address in OPC
Merge branch 'development' of https://github.com/PrestaShop/PrestaShop into development
[-] FO : Bad checkbox behavior in FF in OPC
[*] MO: Add smarty cache on blockcustomerprivacy
[*] MO: Add smarty cache on blocksearch
[*] MO: Add smarty cache on blocksocial
[*] MO: Add smarty cache on editorial module
[-] Fix: OrderHistory::changeIdOrderState

&$id_order break compatibility with existing codes :

1/ it's unnecessary : Objects are passed by references by default
2/ it causes fatal errors: 
```PHP
$foo->changeIdOrderState((int)$id_order_state, (int)$id_order);
```
Fatal error: Only variables can be passed by reference
[-] FO : fix PSCFV-5934 bad redirection from https to http for CMS
Merge branch 'development' of https://github.com/PrestaShop/PrestaShop into development
[*] FO : Fix #PSCFV-6122 for better adresses aliasing in shopping-cart
// initialize also the link in config.inc.php for retrocompatibility
[-] CORE : fixed bug #PSCFV-4523 - Static _PS_DEFAULT_CUSTOMER_GROUP_ is still use in code even if deprecated 1.5.0.1