Improvement: A new way of building NGINX on Heroku
use nginx 1.5.7
feature: add headers-more-nginx module
feature: add appcache as mime type
Added NGINX_WORKERS configuration
fix directory typo
Merge pull request #27 from kanzure/fix-readme-typo

Fix directory typo
Use Heroku's latest http request id header

Closes #26

Documentation on the header: https://devcenter.heroku.com/articles/http-request-id
Merge pull request #25 from johnkchow/master

Added NGINX_WORKERS configuration
Don't show server_tokens

Showing server tokens reveals the nginx version number to would-be attackers. The version number is an easy way to figure out security exploits.
Merge pull request #31 from a-warner/turn_off_server_tokens

Don't show server_tokens