#117 Incorrect behaviour running in / dir.

[Cuthbert Cat]

When the wiki directory is in fact "/" we get image
links to relative urls such as
"//themes/default/images/logo.png" - these don't work
with either IE or Mozilla. The following code in
config.php should fix all that:

---

if (!defined('DATA_PATH'))
if (dirname(SCRIPT_NAME) == "/")
define('DATA_PATH', "");
else
define('DATA_PATH', dirname(SCRIPT_NAME));

---

Also, there ought to be a comment in the default
index.php to the effect that if you are running from
the main webserver directory you should set DATA_PATH
to an empty string.