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.

(he)