Support renewed Code Climate's ratings

[blooper05]

They have changed their measurement policy.
http://blog.codeclimate.com/blog/2017/09/21/a-new-clearer-way-to-understand-code-quality/

And official badge's designs too.
https://docs.codeclimate.com/docs/overview#section-badges

[Nickersoft]

Was just about to post this same thing... while the CC code coverage badge still works, the regular CC badge doesn't. Would love to see this fixed as I just upgraded my Code Climate to the new format 👍

[paulmelnikow]

We have a great tutorial. Would you like to make a pull request?

[Nickersoft]

@paulmelnikow I can look into it.. wasn't aware there was a tutorial. Good to see to see it's well documented! Would you happen to know if the current Code Climate badge requires an auth token of some sort? It seems the new API requires one at least.

[paulmelnikow]

No, it doesn't look like the code for the current badges makes use of one.

[Nickersoft]

@paulmelnikow How's this? #1236

[PyvesB]

We have recently rewritten the code for all Code Climate badges (see #1387 and #1368) and we're effectively supporting their new rating system. Therefore closing this issue. 😉

Please refer to #1518 to track the actual production deployment.