middleman/middleman — pull request #530 by rumpuslabs (2012-07-12 02:50:01+00:00)
Title: Add trailing_slash option for prettier urls

"set :trailing_slash, false" will cause resource urls that match the
index_file to have the trailing slash stripped off the directory URL,
e.g. instead of "/dir/index.html" becoming "/dir/" it will be "/dir"