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

* 'PHP-5.4' of git.php.net:php-src: (65 commits)
  Add a couple more test cases to parse_url() tests
  fix missing change from 'tcp_socket' to the more common 'server'
  fix many parallel test issues
  Cleanup temp test file
  Fixed Bug #66034 (Segmentation Fault when constructor of PDO statement throws an exception)
  Typo fix: umknown -> unknown
  Fix bug #66008
  5.4.23-dev
  Update NEWS
  Fixed Bug 64760 var_export() does not use full precision for floating-point numbers
  add bundled libzip LICENSE, as required by BSD License terms
  - Updated to version 2013.8 (2013h)
  remove "PHP 6" staff
  Fixed bug #65950 Field name truncation if the field name is bigger than 32 characters
  - Updated to version 2013.7 (2013g)
  Fix Coverity issue reporting wrong sizeof()
  exif NEWS
  add tests for bug #62523
  Merged PR #293 (Exif crash on unknown encoding was fixed) By: 	Draal Conflicts: 	configure.in 	main/php_version.h
  Just SKIP that test on travis
  ...