[IMPROVEMENTS]
- Updated documentation for cotent_length and content_type #625
- Allow hyphens in file extensions for custom MIME types #614
- Updated some python test script to work with Python 3 #639
[BUG FIXES]
- Fix HTTP::Message::PSGI to work with delayed writer without content #653
- Plackup reloader allows restarting the server when the path contains .git or .svn, just not at the beginning of the path #632
- Added MIME types for .webp, .ttf and .xlsx files (rrwo)
- Fix Plack::Request content to not error when Content-Type is empty #655