Log Message:
Update to 0.204002

Upstream changes:
0.204002  2016-12-21 15:40:02-06:00 America/Chicago

    [ BUG FIXES ]
    * GH #975: Fix "public_dir" configuration to work, just like
      DANCER_PUBLIC. (Sawyer X)

    [ ENHANCEMENTS ]
    * You can now call '$self->find_plugin(...)' within a plugin
      in order to find a plugin, in order to use its DSL in your
      custom plugin. (Sawyer X)

    [ DOCUMENTATION ]
    * GH #1282: Typo in Cookbook. (Kurt Edmiston)
    * GH #1214: Update Migration document. (Sawyer X)
    * GH #1286: Clarify hook behavior when disabling layout (biafra)
    * GH #1280: Update documentation to use specific parameter
                keywords (Hunter McMillen)