Merge branch 'PHP-5.6' of git.php.net:/php-src into PHP-5.6

* 'PHP-5.6' of git.php.net:/php-src:
  Improvements to fix #72714, suggested by nikic
  Fix #65732: grapheme_*() is not Unicode compliant on CR LF sequence
  Fix #72714: _xml_startElementHandler() segmentation fault
  update NEWS
  Fixed bug #72852 imap_mail null dereference
  Revert "Fix dba configuration for Windows"
  Fix dba configuration for Windows
  Fix broken test include
  fix NEWS
  Add myself as PDO_OCI maintainer