Merge pull request #46 from md5/connection-upgrade

Send "Connection: upgrade" when "Upgrade" header is received
Typo in readme
Merge pull request #50 from bettse/master

Typo in readme
Move settings that don't differ per container to the top level
Raise proxy_buffering statement to http level
Make template more readable

* $value -> $container
Drop unused index variables from range statement
Move gzip_types, access_log, and error_log to http
Merge pull request #49 from md5/reduce-redundancy

Simplify template output
Support paths with VIRTUAL_PATH

* Require `dict` and `sha1` function support in docker-gen