Buttered URLs

Installation

Edit config.php to suit your needs
Upload contents to root of your short domain
Visit yourdomain/install.php (add ?start=2 for upgrading a lessn database)
Visit yourdomain/-/ to login & start using

Requirements

PHP 5.1+
PHP's PDO
MySQL or PostgreSQL or SQLite
mod_rewrite or similar rewrite system (see .htaccess)