[ANN] unicorn 5.8.0 - Rack HTTP server for fast clients and *nix

unicorn is an HTTP server for Rack applications designed to only serve
fast clients on low-latency, high-bandwidth connections and take
advantage of features in Unix/Unix-like kernels. Slow clients should
only be served by placing a reverse proxy capable of fully buffering
both the the request and response in between unicorn and slow clients.

.onion URLs below are available for Tor users and can reduce
our operating costs:

* https://yhbt.net/unicorn/
  http://unicorn.ou63pmih66umazou.onion/
* public list: unicorn-public@yhbt.net
* mail archives: https://yhbt.net/unicorn-public/
  http://ou63pmih66umazou.onion/unicorn-public/
* git clone https://yhbt.net/unicorn.git
  torsocks git clone http://ou63pmih66umazou.onion/unicorn.git
* https://yhbt.net/unicorn/NEWS.atom.xml
  http://unicorn.ou63pmih66umazou.onion/NEWS.atom.xml
* nntp://news.public-inbox.org/inbox.comp.lang.ruby.unicorn
  nntp://ou63pmih66umazou.onion/inbox.comp.lang.ruby.unicorn
  imaps://news.public-inbox.org/inbox.comp.lang.ruby.unicorn.0
  imap://ou63pmih66umazou.onion/inbox.comp.lang.ruby.unicorn.0

Changes:

    unicorn 5.8.0 - rack.after_reply support

    This release supports env['rack.after_reply'] which allows
    rack middleware to pass lambdas to be executed after the client
    connection is closed, matching functionality in Puma.

    Thanks to Blake Williams for this patch:
    https://yhbt.net/unicorn-public/9873E53C-04D3-4759-9678-CA17DBAEF7B7@blakewilliams.me/

    The top-level of our website is now simpler and no longer
    redundant with the contents of https://yhbt.net/unicorn/README.html
    (which contains the old content)