Fixed stream_socket_pair() on Windows x64 and

improved errorhandling in the socketpair() implementation.
Merge branch 'PHP-5.3' into PHP-5.4

* PHP-5.3:
  Fixed stream_socket_pair() on Windows x64 and
updated NEWS
Merge branch 'PHP-5.4' into PHP-5.5

* PHP-5.4:
  updated NEWS
  Fixed stream_socket_pair() on Windows x64 and
updated NEWS