[*] BO : Option to force new products to use (if enabled) Advanced Stock Managment/Depends On Stock
[-] FO : Remove unnecessary translatable strings
[-]BO: fix use of parameter class for renderForm()


In renderForm() and form.tpl, we can't use the parameter "class" for simple textarea instead of "textarea-autosize".
A "class" cannot be applied to a "textarea" if it has not the "class" autoload_rte.


To fix it, i propose: 
class="{if isset($input.autoload_rte) && $input.autoload_rte}rte autoload_rte {if isset($input.class)}{$input.class}{/if}{else}{if isset($input.class)}{$input.class}{else}textarea-autosize{/if}{/if}"

Best regards
 // typo availaible => available
 // Invalid return types in PHPDoc's
 // Redundant closing tags removed
 // Statements that would never execute
 // Replace deprecated key_exists php function
 // Equal assignment - useless
 // duplicate keys in arrays, values are just overwritten
 // duplicate case expression in switch
 // fix return type
 // looks like it's a string, not datetime object
 // looks like it's a string
 // some missing break; statements
 // fixing more wrong types in PHPDoc's
 // fixing wrong param types in PHPDoc's
Merge pull request #1224 from PhpMadman/1.6-QtyAsm

[*] BO : Option to force new products to use (if enabled) Advanced Stock...
// followup https://github.com/PrestaShop/PrestaShop/pull/1432
// Fix blocklayered html