merged rev4714
merged rev4714

first user registration after the fresh install on psql fixed

@see http://forum.phpmyfaq.de/viewtopic.php?f=3&t=9936

rogeriopradoj/phpMyFAQ-vagrant,brianjking/phpMyFAQ,Chris--A/phpMyFAQ,Chris--A/phpMyFAQ,brianjking/phpMyFAQ,Chris--A/phpMyFAQ,rogeriopradoj/phpMyFAQ-vagrant,thorsten/phpMyFAQ,thorsten/phpMyFAQ,thorsten/phpMyFAQ,Chris--A/phpMyFAQ,rogeriopradoj/phpMyFAQ-vagrant,thorsten/phpMyFAQ,brianjking/phpMyFAQ,brianjking/phpMyFAQ,rogeriopradoj/phpMyFAQ-vagrant