Log Message:
Update php55 to 5.5.18.

16 Oct 2014, PHP 5.5.18

- Core:
  . Fixed bug #67985 (Incorrect last used array index copied to new array after
    unset). (Tjerk)
  . Fixed bug #67739 (Windows 8.1/Server 2012 R2 OS build number reported
    as 6.2 (instead of 6.3)). (Christian Wenz)
  . Fixed bug #67633 (A foreach on an array returned from a function not doing
    copy-on-write). (Nikita)
  . Fixed bug #51800 (proc_open on Windows hangs forever). (Anatol)
  . Fixed bug #68044 (Integer overflow in unserialize() (32-bits only)).
    (CVE-2014-3669) (Stas)

- cURL:
  . Fixed bug #68089 (NULL byte injection - cURL lib). (Stas)

- EXIF:
  . Fixed bug #68113 (Heap corruption in exif_thumbnail()). (CVE-2014-3670)
    (Stas)

- FPM:
  . Fixed bug #65641 (PHP-FPM incorrectly defines the SCRIPT_NAME variable
    when using Apache, mod_proxy-fcgi and ProxyPass). (Remi)

- OpenSSL:
  . Revert regression introduced by fix of bug #41631

- Reflection:
  . Fixed bug #68103 (Duplicate entry in Reflection for class alias). (Remi)

- Session:
  . Fixed bug #67972 (SessionHandler Invalid memory read create_sid()). (Adam)

- XMLRPC:
  . Fixed bug #68027 (Global buffer overflow in mkgmtime() function).
    (CVE-2014-3668) (Stas)