[openstreetmap-website] Updated wiki links and script, added sources in Slovenia to copyright page (#946)

[Štefan Baebler]

Sent a pull request #947 specifically cherry-picked for #943 

It wasn't my intention to sneak in copyright additions, but forgetting to switch branches while this pull request was still open.

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Reply to this email directly or view it on GitHub:
https://github.com/openstreetmap/openstreetmap-website/pull/946#issuecomment-89736152
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