Update to use v3 of ORES API

[he7d3r]

As reported in https://github.com/Krinkle/mw-gadget-rtrc/issues/109, the API v1 is deprecated. Consequently, the requests return the following instead of the scores:

{
    "detail": {
        "error": {
            "code": "not found",
            "message": "ORES support for v1 has been deprecated. Please use v3."
        }
    }
}

This pr updates the code to use the new format.

[he7d3r]

Hummm... Looks like I was a few minutes late: https://github.com/Krinkle/mw-gadget-rtrc/commit/ef2a8166b501ccc30608d145f9d0f6d88a4e8f13

[Krinkle]

@he7d3r Thanks anyway!

I've now tagged and uploaded the v1.4.6 release to mediawiki.org. Should be live for everyone within a minute or two!