Translations:MediaWiki 1.31/62/en


 * Initialize PSR-4 namespaces at same stage as normal autoloader.
 * Hide MySQL binary/utf-8 charset option in the installer.
 * Don't allow setting in the installer.
 * php-memcached 3.0 (provided with PHP 7.0) is now supported.
 * now works on PHP 7.1+
 * Fix exception from  deref on HHVM in the   hook.
 * The  of   files is now able to be zero.
 * Validate  in  /  parser functions.