When ran from a root directory the test case failed, because the open_basedir
restriction for "../[…]" won't kick in. Therefore we change the current
working directory to the test case's directory, as discussed on internals,
see <http://news.php.net/php.internals/95585>.
* Removed ini options, safe_mode*
* Removed --enable-safe-mode --with-exec-dir configure options on Unix
* Updated extensions, SAPI's and core
* php_get_current_user() is now declared in main.c, thrus no need to include safe_mode.h anymore