mathiasbynens/grunt-zopfli — pull request #9 by patrickkettner (2013-12-26 22:13:31+00:00)
Title: make path to zopfli configurable by the task

This would allow for something like [node-zopfli](https://github.com/duralog/node-zopfli) to be used, rather than depending on a globally installed version of zopfli