Release puppet/rabbitmq 6.0.0

[alexjfisher]

We want to release the first Voxpupuli puppet namespace as soon as possible. There are a few things we should probably get done first though.

• Add README badges
• modulesync
• Update Development section of README
• Update outdated Apt module compatibility README section
• Sync labels
• Migrate existing changelog to HISTORY.md
• Tweak Issue/PR titles and labels for better 6.0.0 changelog
• Fix and / or add ignore statements for remaining Rubocop warnings
• Add module to modulesync_config repo
• Add module to plumbing
• fix a couple of problems with erl_ssl_path fact #606 probably should be merged (ideally with tests) first
• Investigate use of new 6.0.0 module on new installation fails #611

[alexjfisher]

@wyardley @bastelfreak Can you think of anything else we need to do before the release?

[wyardley]

Sounds about right to me. We'll also need to do some combination of suppressing / fixing the 'multiple expectations' warnings. There are a few that I think I can resolve, but then we should set a Rubocop ignore for the rest, and open an issue to fix them eventually.

I'd love to switch to archive module, but agree with @alexjfisher that we can wait on that for the next release.

[wyardley]

I think README badges are good now, and I synced the labels and checked that off.

[wyardley]

Created #596 for Modulesync, let me know how that looks

[wyardley]

#597 addresses changelog

[wyardley]

Realized that voxpupuli/plumbing#136 already existed after I submitted voxpupuli/plumbing#137.
However, someone with the Travis password will need to add that.

[wyardley]

Got #602 open, and created #603 as a reminder to eventually fix.

[costela]

after some delay (sorry! 😅) I got #609 fixed (resub of #606).