Log Message:
Update from version 3.56nb1 to 3.59.

Upstream changes:

2008-11-24   Gisle Aas <gisle@ActiveState.com>

     Release 3.59

     Restore perl-5.6 compatibility for HTML::HeadParser.

     Improved META.yml

2008-11-17   Gisle Aas <gisle@ActiveState.com>

     Release 3.58

     Suppress "Parsing of undecoded UTF-8 will give garbage" warning
     with attr_encoded [RT#29089]

     HTML::HeadParser:
       - Recognize the Unicode BOM in utf8_mode as well [RT#27522]
       - Avoid ending up with '/' keys attribute in Link headers.

2008-11-16   Gisle Aas <gisle@ActiveState.com>

     Release 3.57

     The <iframe> element content is now parsed in literal mode.

     Parsing of <script> and <style> content ends on the first end tag
     even when that tag was in a quoted string.  That seems to be the
     behaviour of all modern browsers.

     Implement backquote() attribute as requested by Alex Kapranoff.

     Test and documentation tweaks from Alex Kapranoff.