Fix Origin PHP quickstarts.

Currently, the PHP-based quickstarts don't work on either RHEL/CentOS or Fedora 19.

The quickstarts all specify php-5.4, whereas Fedora 19 (and the official Fedora VM) ships with PHP 5.5, and RHEL ships with PHP 5.3. I have tested this change on Origin Release 2 running on both Fedora 19 and CentOS 6.4.