Merge branch 'PHP-5.4' of git.php.net:php-src into PHP-5.4

* 'PHP-5.4' of git.php.net:php-src:
  Fixed bug #66060 (Heap buffer over-read in DateInterval)
Fixed bug #53879 (DateTime::createFromFormat() fails to parse cookie expiration date)
Merge branch 'bug53879' into PHP-5.4
Merge branch 'PHP-5.4' into PHP-5.5