1.0.4

• Make dynamic huffman table decoding more robust against out of bounds
  distance entries, based on a PR from @se-mz.
• Detect invalid distance codes 30/31, for symmetrical treatment of
  invalid length and distance codes.
• Initialize sliding window buffer to all 0 to avoid data leakage for
  backreferences outside of the already written stream.
• Revamp gzip header decoding to allow for checking of optional FHCRC
  CRC16 header checksum when checksum checking is enabled.
• Improve optimize declarations, especially for LispWorks performance.
• Remove no longer needed muffle annotations for SBCL.
• Remove non-endorsement clause from license, making it pure MIT.
• Add testsuite to distribution