Advanced stock and pack product - no warehouse

Refer to http://forge.prestashop.com/browse/PSCFV-11658
[*] BO : New employees only get notifications from orders/customer_messages/customer created after registration
Tabs cache set to "null" when using "add" function

$_getIdFromClassName is assigned "Null" to make it compatible with function "save". In P.S. 1.6.0.3 $_getIdFromClassName was assigned null after using "save function", but if a module is using "add" function new value is added to the array, but not reloaded. 

When a tab is created via "save" function $_getIdFromClassName is assigned "null", but if a module creates a tab using "add" function, newly adde tab is assign to $_getIdFromClassName (without reloading data from database), this causes $_getIdFromClassName to contain 1 value, and this prevents function "getIdFromClassName" to reload tabs data from database, and causes "getIdFromClassName" to return "false" in future calls.
Merge pull request #1417 from erickturcios/1.6

// Tabs cache is reset on "add" function
// BlockLayered - Delegate on click action
[-] BO: Fix feature values listing - custom could be null in database
[-] MO : blocksupplier : no links if the suppliers are disabled
[-] MO : SocialSharing, urlencode parameters
Merge branch '1.6' of github.com:PrestaShop/PrestaShop into 1.6
// small secu fix
[~] BO : Fix search conf indexation amount (PSCSX-758)

Fixes http://forge.prestashop.com/browse/PSCSX-758

The indexation values (amount / total) are wrong because the SQL query doesn't filter by product_shop "visibility" and "active" state (but the Search::indexation method does)
[-] CORE : FixBug #PSCSX-744 - tinyMce filemanger thumb directory problems
Merge pull request #1424 from axometeam/patch-25

[~] BO : Fix search conf indexation amount (PSCSX-758)
// colorpicker++
// filemanager
[-] BO : Fix bug #PSCSX-758, do not index inactive products
// Bad commit
// fix search with multishop....
// improved link plugin
Rename az_AZ.php to az.php