Log Message:
Update to 1.59

Upstream changes:
1.59    2016-03-01
    - Merge a pull request to add subcategory support.
        - https://github.com/shlomif/perl-XML-RSS/pull/4
        - https://rt.cpan.org/Public/Bug/Display.html?id=48426
        - Thanks to @ozcoder for the changes.