protected function loadEnvironment($prefix)
    {
        $props = new Properties();
        if (substr($prefix, strlen($prefix) - 1) == '.') {
            $prefix .= ".";
        }
        $this->log("Loading Environment $prefix", Project::MSG_VERBOSE);
        foreach ($_ENV as $key => $value) {
            $props->setProperty($prefix . '.' . $key, $value);
        }
        $this->addProperties($props);
    }