Let's experiment a bit with CEF3, shall we… This is a quite apparent change - the locales have moved to a directory of their own, it seems.
Added the rest of the files from the CEF3 1453 binary release. Had to leave out the Debug/libcef.dll, since it was huge - around 180 MiB, which is bigger than the maximum limit enforced by GitHub. We can hopefully use the release/libcef.dll both for release and debug builds, since we aren't really debugging CEF so much in this use case…