Fix possible issues in skin/skin_path config handling (#1490125)

Aleksander Machniak

2014-10-30 73b14686fc7f2ac028af4e8366e7d3882d2894a8

 program/include/rcmail_output_html.php

@@ -168,6 +168,8 @@
            $valid = !$skin;
        }

        $skin_path = rtrim($skin_path, '/');

        $this->config->set('skin_path', $skin_path);
        $this->base_path = $skin_path;