0.02  2017-02-21
    - namespaces support
    - chained methods reworked into selectors (XML::Chain::Selector)
    - add find($xpath) method
    - first version of auto_indent(1) using XML::Tidy (don't use in persistent env [rt.cpan.org #120296])
    - single() method (XML::Chain::Element)
    - empty() method to remove all child elements
    - loading & storing of xml files / xml strings using IO::Any

0.01  2017-01-18
    - initial prototype version