Additional fingerprints

[HolgerAusB]

• new fingerprint for ippen.media based newspapers (German), the old one is not longer valid
• new fingerprint for medium.com based websites, transformed from @fivefilters FulltextRSS config

[fivefilters]

There's also this for Substack that we use, if you'd like to add it, @HolgerAusB:

'<link rel="stylesheet" type="text/css" href="https://substackcdn.com/' -> fingerprint.substack.com

[j0k3r]

Good job and thanks for your first PR @HolgerAusB!
I squashed your commits and fixed tests

[HolgerAusB]

OK @j0k3r, I don't understand, for what ContentExtractorTest.php is. No need to explain, I am not a real coder!

But you use here a wider range of the fingerprint and I just want be sure that this will not cause problems. You wrote:
... {"de.ippen-digital.story.onlineId":91197383} ...
but that number should be different for each article, I think.

And there is not test entry for the other two services I added: fingerprint.medium.com and fingerprint.substack.com

[j0k3r]

The test doesn't care about the id because the fingerprint doesn't check it.
So it's ok.
Yeah, no big deal if there is no test for other fingerpring :)

[HolgerAusB]

@j0k3r, any ETA about when this is might going to be released and pushed to wallabag?