An XPath for JSON

A port of the Perl, and JavaScript versions of JSONPath
see http://goessner.net/articles/JsonPath/

Based on on JavaScript version by Stefan Goessner at:
        https://goessner.net/articles/JsonPath/
        http://code.google.com/p/jsonpath/
and Perl version by Kay Rhodes at:
        http://github.com/masukomi/jsonpath-perl/

Python3 compatibily by Per J. Sandstrom
