0.03    2024-11-19
    - add logging of internal server error
    - allow for jsonp style callback

0.02    2021-07-23
    - supports different return values from request handling methods
      Future, Array-Ref and Scalar
      so request handling methods can be async (Future::AsyncAwait)
    - add support for capture args
    - fix dist issues (thanks to Slaven Rezic)

0.01  2020-10-14
    - initial version