Don't delete Content-Length header if it's a head request or if the body is a Rack::File
Remove trailing whitespaces :cop: [ci skip]
Merge pull request #771 from patriciomacadden/no-trailing-spaces

Remove trailing whitespaces :cop: [ci skip]
Add integration tests for sending files (Content-Length response header related tests)
Added Reel (https://github.com/celluloid/reel-rack/) as possible Rack Handler.
Merge pull request #770 from patriciomacadden/send_file

Don't delete Content-Length header if it's a head request or if the body is a Rack::File
Merge pull request #773 from tbuehlmann/reel_rack_handler

Added Reel as possible Rack Handler
Renamed URI constant to URI_INSTANCE
update item of route
Merge pull request #777 from patriciomacadden/uri_const

Renamed URI constant to URI_INSTANCE
Cleanup `public_dir` handling
Merge pull request #779 from vipulnsward/public_dir

Cleanup `public_dir` handling
Translate for addition
delete README.jp.md.bak
Changed `map` to `map!` at various places to avoid extra array creation.
Merge pull request #778 from utenmiki/translation

update item of route
Merge pull request #780 from vipulnsward/map_changes

Changed `map` to `map!` at various places to avoid extra array creation.
Remove explicit block passing
Merge pull request #781 from vipulnsward/remove_explicit_blocks

Remove explicit block passing
@mongrelion’s spanish README improvements

Instalá el gem y corré la aplicación con → Instalar la gema y correr la aplicación con
Podés verla en http://localhost:4567 → Ver en http://localhost:4567