Allow multiple file products

Hello!
I created an issue (http://drupal.org/node/231931) against the e-Commerce file product module, which contains a patch which implements a functionality I needed: when creating a file product, if instead of a filename you enter a directory name, the buyers of this product will be able to see and download all the files contained in this directory. This basically allows to create file products consisting of multiple files.

The patch I submitted is for e-Commerce 3.4 (drupal 4.7), which is the version I'm using; I would be very happy if this were incorporated into the newer releases, too.

The patch might need some work; not much in functionality, as it seems to be working OK for me, but the visual appearance of the listing in the user's "My files" section could be improved. But as I am no HTML/Graphics expert, I would leave the task for someone more fit.

Comments welcome. :-)