SVG logos for two non-Wikibooks, non-Wikisource wikis

This patch adds two PNG thumbnails of SVG logos drawn
by Google Code-In students for the Occitan Wiktionary
and the Czech Wikiversity.

No community consensus was sought since the logos are
as close to 1:1 replicas as possible; see bug for
more information on that.

Attribution notice: Occitan Wiktionary logo created
by Yuan Siang (CC BY-SA 3.0); Czech Wikiversity logo
by Thomas Lam and (c) by the Wikimedia Foundation.

The logos are already protected on Commons against
re-uploads and name changes; I've done that myself.

I will be submitting 10 new Wikibooks and 20 new
Wikisource logos created by GCI students in the
coming days.

Bug: 52019
Change-Id: I2e9398f60d795502c8ce1f2de9599ac3d709686d
Correct a domain in wgCopyUploadsDomains

The Peace Palace Library always prepends
www to their domain, so our current entry
does not catch that.

Bug: 64700
Change-Id: I832b45db6f1d3050532e524efd1a7b737a830cee
Merge "Correct a domain in wgCopyUploadsDomains"