Automatically load template files from module directory

Hi,

As mentioned in the INSTALL.txt file, this module requires you to manually copy two tpl.php files into your theme for the module to work.
Attached is a patch that supposedly fixes this, by adding the module's theme directory to the theme registry for autodiscovery purposes.

As i'm not sure if this will work on all installations & setups, this patch should be tested & reviewed to make sure it doesn't actually break anything else.

Hope this helps.

Kind regards,
Sven Decabooter