amalloy/ring-gzip-middleware — pull request #1 by cemerick (2012-02-27 18:08:31+00:00)
Title: Ring :headers are always lower-case AFAIK

See https://github.com/mmcgrana/ring/blob/master/ring-servlet/src/ring/util/servlet.clj#L16

Also, fixed the tests to not depend upon contrib either.