Merge branch 'PHP-5.3' of https://git.php.net/repository/php-src into PHP-5.3

* 'PHP-5.3' of https://git.php.net/repository/php-src:
  fix using wrong buffer pointer
Fixed whitespace part of bug #64874 ("json_decode handles whitespace and case-sensitivity incorrectly")
Better test: Check combined leading/trailing
Merge branch 'PHP-5.4' into JSONWhitespaceFix
UPGRADING and NEWS
remove "PHP 6" staff
Merge branch 'PHP-5.4' of git.php.net:php-src into PHP-5.4
Merge branch 'PHP-5.4' into PHP-5.5
Merge branch 'PHP-5.4' of git.php.net:php-src into PHP-5.4

* 'PHP-5.4' of git.php.net:php-src:
  add bundled libzip LICENSE, as required by BSD License terms
5.4.23-dev
Fix bug #66008
Fix bug #66008
add news entry about FPM backlog change

and move the other entry to its proper place
Typo fix: umknown -> unknown
Typo fix: umknown -> unknown
Merge branch 'PHP-5.5' of git.php.net:php-src into PHP-5.5

* 'PHP-5.5' of git.php.net:php-src: (107 commits)
  Typo fix: umknown -> unknown
  add news entry about FPM backlog change
  Fix bug #66008
  updated libs_versions.txt
  Update NEWS
  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)
  Use zval* instead of zval**
  Increased limit for opcache.max_accelerated_files to 1,000,000. (Chris)
  Improved performance of array_merge() by eliminating useless copying
  Improved performance of func_get_args() by eliminating useless copying
  Link to more readmes
  increase backlog to the highest value everywhere
  Update NEWS
  Fixed bug #65950 Field name truncation if the field name is bigger than 32 characters
  - Updated to version 2013.7 (2013g)
  Increment version number, since this will be 5.5.6.
  Added Zend Debugger to the note about the load order (by trash4you at online dot de)
  ...
Fixed coredump due to abnormal implemention of phar
Merge branch 'PHP-5.5' of git.php.net:php-src into PHP-5.5
Merge branch 'PHP-5.4' of git.php.net:php-src into PHP-5.4
Fixed Bug #66034 (Segmentation Fault when constructor of PDO statement throws an exception)

I know zend_call_function will initilize retval_ptr_ptr, but still set
it to NULL explict is more readable