Whoops! Fixed an SQL injection vulnerability in the CLI installer. (Not like it's a huge deal because the vulnerability was only introduced last commit and if you make it to that stage you already know the database password)

<?php

class Text_Wiki_Render_Plain extends Text_Wiki_Render {
    
    function pre()
    {
        return;
    }
    
    function post()
    {
        return;
    }
    
}
?>