Add archived note where needed

[dveeden]

Closes #124

[dveeden]

I have removed MySQLDumper as the domain is now for sale. Maybe this was https://github.com/DSB/MySQLDumper ? but I'm not sure and that's archived as well.

[dveeden]

Removing mixer as it isn't maintained anymore.

[shlomi-noach]

Is MHA maintained? What's our criteria for removing unmaintained projects?

I'm thinking some untmaintained projects should still be listed here, if they are still applicable and have adoption. Such an example is dbdeployer. Another would be orchestrator, which I've stopped maintaining (officially only temporarily, but for some 3 years now).

So where do we draw the line?

[dveeden]

The last commit on https://github.com/yoshinorim/mha4mysql-manager was 6 years ago, which likely means MHA isn't maintained anymore.

@yoshinorim maybe you can give a final answer on this?

For Mixer I have asked Siddon and he told me that this can be removed.

Things like dbdeployer and orchestrator should remain there, but where possible with a note. Having an archived repo (dbdeployer) or a note like the one on https://downloads.mysql.com/archives/utilities/ is the easiest to go on. Another good indication is if the website and/or repo isn't available anymore.

If there are somewhat recent commits and the repo isn't archived (e.g. orchestrator) then adding a note/flag should only be done based on information from the author/owner of the project.

[shlomi-noach]

👍 Given @siddontang agrees to the removal we're good here.

[yoshinorim]

Sorry I missed the comment but you are right, I am no longer maintaining MHA. It used to work with 5.1/5.6/8.0 at least.