Add the Date to the Digest + efficiency changes

[AliFahimi]

This adds the date to the digest and it should theoretically be able to process two levels of images. Unfortunately I do not have a account that has that issue, so if someone could pull this branch and check that would be fantastic.

I also changed the digest code for that page, I may have gotten a little bit carried away but hopefully this should limit the number of images in the local directory.

[mdconatser]

@cthorn2 can you try this one?

[cthorn2]

Looks good.