Log Message:
Update to 2.22

Upstream changes:
2016-02-23 14:01:33 +0000 2.22
==============================

  commit f96a77938f94bf74fa00449fe941b70e77de0443
  Author: Chris 'BinGOs' Williams <chris@bingosnet.co.uk>
  Date:   Tue Feb 23 14:01:33 2016 +0000

    This is 2.22

  commit ef1c866bf188a3cbedc2da5db4e0714d6e195205
  Merge: b884aba e2e1b02
  Author: Chris Williams <chris@bingosnet.co.uk>
  Date:   Tue Feb 23 13:57:50 2016 +0000

    Merge pull request #4 from brewt/silence-keep-alive-warnings

    Silence warnings from must_keepalive()

  commit e2e1b0279b68c0292e2904e4d2212f9293cf2bb1
  Author: Adrian Yee <adrian@gt.net>
  Date:   Fri Feb 19 13:08:59 2016 -0800

    Silence warnings from must_keepalive()

    A simple patch to silence warnings from must_keepalive().
    HTTP::Request->header() (inherited from HTTP::Header->header())
    returns undef if the requested header doesn't exist.

    Same patch from RT #107397

  commit 53fe993ca858fdcb663ac76c5fe3f6120f6d73a1
  Author: Adrian Yee <adrian@gt.net>
  Date:   Fri Feb 19 00:52:24 2016 -0800

    Fix graceful shutdowns when keep-alives are in use

    If you shut down the httpd gracefully while there's a keep-alive
    connection is connected, then any subsequent requests through that
    connection will result in an error. This occurs since the as the
    handler's post to the DONE event will fail due to the alias being
    removed.

==============================
2015-09-28 19:07:04 +0100 2.20
==============================

  commit 5a7aee1eb2ea8db7a548eb4c3638e14d94c08dda
  Author: Chris 'BinGOs' Williams <chris@bingosnet.co.uk>
  Date:   Mon Sep 28 19:07:04 2015 +0100

    This is 2.20

  commit 9c84828f48c8079c754311a7b8f80b8ef3ae634f
  Merge: d272889 7d25abf
  Author: Chris Williams <chris@bingosnet.co.uk>
  Date:   Mon Sep 28 18:36:32 2015 +0100

    Merge pull request #2 from leejo/rt/73630

    resolve RT #73630 - fix some typos

  commit 7d25abf5522e76e2c22aaa77fde0fedef89eda31
  Author: Lee Johnson <lee@givengain.ch>
  Date:   Wed Sep 23 16:19:39 2015 +0200

    resolve RT #73630 - fix some typos

    apply patch from gregoa@debian.org and fix a couple of other typos
    spotted

  commit 3a65df5092c5eef8a62f53a20d23257560f4e386
  Author: Lee Johnson <lee@givengain.ch>
  Date:   Wed Sep 23 16:10:54 2015 +0200

    add more instructions on how to build this dist

    in the README document that a couple of extra Module::Install mods
    are required as a vanilla Module::Install does not support some of
    the options in the Makefile.PL

    update .gitignore to included (well, exclude) files generated by the
    build process