[ansel] New ansel backend

[Ben Chavet]

> Ah, good call. So, uh, any suggestions on how to re-run the conversion with
> the
> new category data, but the old vfs data, to just update the vfs?

Um...not really.

All of the ID's are re-generated to fit the new scheme, so the image data
doesn't map to the old vfs data anymore.  There's a good possiblilty that the
images are in the same order, so you might be able to loop through the images
in the gallery & map them to the images in the vfs that way.

--Ben