Remove image and page number from DB

[carrosa]

This needs to be done so we can have parallell upload of images. As of right now this is impossible because per image uploaded we are GETing the next page/image number from the backend, so when 2 (or more) people are trying to upload photos at the same time it will crash for one (or more [or all]) of them. Will do a redesign of the DB for this purpose.

We have to keep page and image number on the analog photos for physical archive purposes. I'm thinking we will do this through just a comment instead. That might be the best.