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

# By Dmitry Stogov (3) and Xinchen Hui (1)
# Via Xinchen Hui
* 'phpng' of git.php.net:php-src:
  Fixed invalid read in ext/pdo/tests/pdo_025.phpt(pgsql)
  Fixed persistent WSDL cache
  Fixed wrong backtrace (__doRequest is not a static method). The "master" behavior is wrong.
  Restored __destructor() behavior