[ANN] unicorn 4.9.0 - 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.

* http://unicorn.bogomips.org/
* public list: unicorn-public@bogomips.org
* mail archives: http://bogomips.org/unicorn-public/
* git clone git://bogomips.org/unicorn.git
* http://unicorn.bogomips.org/NEWS.atom.xml


  unicorn 4.9.0 - TempfileReaper support in Rack 1.6

  This release supports the Rack::TempfileReaper middleware found
  in rack 1.6 for cleaning up disk space used by temporary files.
  We also use Rack::TempfileReaper for cleaning up large temporary
  files buffered with TeeInput. Users on rack 1.5 and earlier
  will see no changes.

  There's also a bunch of documentation/build system improvements.

  This is likely to be the last Ruby 1.8-compatible release, unicorn 5.x
  will require 1.9.3 or later as well as dropping lots of cruft (the
  stupid "Status:" header in responses being the most notable).

  21 changes backported from master:

        ISSUES: update with mailing list subscription
        FAQ: add entry for Rails autoflush_log
        dev: remove isolate dependency
        unicorn.gemspec: depend on test-unit 3.0
        remove RubyForge and Freecode references
        remove mongrel.rubyforge.org references
        examples: add run_once to before_fork hook example
        t/t0002-parser-error.sh: relax test for rack 1.6.0
        switch docs + website to olddoc
        README: clarify/reduce references to unicorn_rails
        gemspec: fixup olddoc migration
        GNUmakefile: fix clean gem build + reduce build cruft
        doc: update support status for Ruby versions
        fix uninstalled testing and reduce require paths
        test_socket_helper: do not depend on SO_REUSEPORT
        ISSUES: add section for bugs in other projects
        explain 11 byte magic number for self-pipe
        Links: mark Rainbows! as historical, reference yahns
        doc: document UNICORN_FD in manpage
        tee_input: support for Rack::TempfileReaper middleware
        support TempfileReaper in deployment and development envs