Log Message:
Update to 0.24.

0.24: # 2015-07-05T13:40:00+0200

- Minor copyediting and formatting changes to the documentation. No
  code changes at all.

0.23: # 2015-07-03T17:00:00+0200

- The "Host" header can now be overriden by supplying a new
  `no_default_host_header` option along with a `Host` header in `head
  => []` to request().

  Before this we'd always send "Host: $host" over, where $host was the
  host we were connecting to, now you can customize this.

- Fixed a bug where if passed passed `head => []` to request() we'd
  emit a ":" header, i.e. just an empty header name with an empty
  value.

  You could have just not passed the `head => ` value if the array was
  empty, but no we won't screw up and emit a single line consisting of
  ":" if given an empty array.

0.22: # 2015-05-27T07:54:17+0200

- No feature change. Re-package due to a missing file in the tarball:
  https://rt.cpan.org/Ticket/Display.html?id=104624

0.21: # 2015-05-22T15:26:23+0200

- Fix "Too many CRLF" issue. Hijk has been always generating HTTP
  request with an extra CRLF at the end. While many HTTP servers are
  ignoring those, some treat it as errors. We now eliminate the extra
  CRLF at the end of every request.
  See also http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html

- Handle better when select() is interrupted by signals.