[ANN] kgio 2.10.0 - kinder, gentler I/O for Ruby + Unix

kgio provides non-blocking I/O methods for Ruby without raising
exceptions on EAGAIN and EINPROGRESS. It is intended for use with the
unicorn Rack server, but may be used by other applications (that run on
Unix-like platforms).

Note: I do not recommend using kgio for future applications, Ruby 2.x
has a lot of the functionality of kgio and Ruby 2.3.0 (due in December)
will have even more (with more improvements planned).
Keep an eye on the NEWS file for Ruby 2.3+ releases.
However, I'll continue maintaining kgio for legacy purposes

* homepage: http://bogomips.org/kgio/
* public mailing list: kgio-public@bogomips.org
* git clone git://bogomips.org/kgio.git
* Atom feed http://bogomips.org/kgio/NEWS.atom.xml
* mailing list archives: http://bogomips.org/kgio-public/

Changes: kgio 2.10.0 - slimming down...

    The largely-unused autopush functionality is now a no-op.
    Existing applications will probably not notice, and are
    better off using MSG_MORE anyways if they're on Linux.

    Our poll(2) wrapper now uses rb_hash_clear if available,
    reducing global method cache dependence.

    shortlog of changes since 2.9.3:

          README: remove reference to Rainbows!
          writev: update comment on preserving errno
          poll: avoid rb_funcall for rb_hash_clear
          minor doc updates
          remove autopush support and make it a no-op
          HACKING: update URL for Message-ID lookup