check for existing glam_id before uploading

[Ambrosiani]

Sometime during the preparation it would be really good to check if a file has already been uploaded to Wikimedia Commons. Until this is implemented in Digitalt Museum itself, one possible way would be to search for the glam_id in Commons and flag possible duplicates for manual checking.

[Abbe98]

We will start to track this directly in Kringla/K-samök. From early April I expect that we will have same as links between your content in K-samsök and the same content on Commons (accessible from our API) :-)