php-pear-HTTP_FloodControl can optionally use package "php-pear-DB" (version >= 1.7.6)
php-pear-HTTP_FloodControl can optionally use package "php-pear-MDB" (version >= 1.3.0)
php-pear-HTTP_FloodControl can optionally use package "php-pear-MDB2" (version >= 2.3.0)
