Log Message:
Update to 0.204001

Upstream changes:
0.204001  2016-10-17 08:29:00-05:00 America/Chicago

    [ BUG FIXES ]
    * Restore 5.8 support (fix test which required captures).
      (Russell @veryrusty Jenkins)
    * PR #1271: fix wrong regex check against $_ (Mickey Nasriachi)

    [ ENHANCEMENTS ]
    * GH #1262: Add 'encode_json' and 'decode_json' DSL, which are
      recommended instead of 'to_json' and 'from_json'.
      (Dennis @episodeiv lichtenth瓣ler)

    [ DOCUMENTATION ]
    * Fix some typos.(Dennis @episodeiv lichtenth瓣ler)
    * GH #1031: Remove D2::Core::Context remnants from docs.
      (Sawyer X)

    [ PACKAGING ]
    * GH #1273: Do not require Test::Perl::Critic to install.
      (Dennis lichtenth瓣ler)