Log Message:
p5-JSON-PP: update to 2.97000.

2.97000 2017-11-21
    - fix is_bool to use blessed() instead of ref() (jwrightecs++)
    - use 5 digit minor version number for a while to avoid confusion
      (GH#33, dansut)

2.96  2017-11-20
    - not to use newer Test::More features (RT-122421 for JSON)

2.95  2017-11-20
    - json_pp now prints an encoded json string (RT#123653)
    - fix is_bool to use ->isa("JSON::PP::Boolean"), instead
      of UNIVERSAL::isa("JSON::PP::Boolean") (GH#34, aidy++)