- Update to RabbitMQ version 3.7.11
- Full release notes: https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.7.11
- RabbitMQ 3.7.11 is a maintenance release. It focuses on bug fixes and
minor usability improvements. This is the first release to require Erlang/OTP 20.3+.

- Update to RabbitMQ version 3.7.10
- Requires erlang to 20.3, mandatory for RabbitMQ 3.7.10
see: https://www.rabbitmq.com/which-erlang.html

- Avoid name repetition in summary. Trim filler wording from
descriptions.

- add the 3.7.x command line tools

- switch to 3.7.x style rabbitmq-server.conf
- Remove sd_notify dependency and replace with socat as
followup to upstream change in
https://github.com/rabbitmq/rabbitmq-server/pull/666

- listen to localhost only by default to comply to the epmd.socket
which also only listens to localhost (bsc#1087270)

- Fix Source0 URL

- BuildRequire elixir
- Constrain required erlang versions:
https://www.rabbitmq.com/which-erlang.html (boo#1115169)
- Drop sysexists-in-ocf.patch: upstreamed
- Update to 3.7.9 (fate#322425, bsc#1115466)
- Changes for 3.7.9: