ronaldlokers/grunt-casperjs — pull request #17 by chprome (2013-07-16 12:21:34+00:00)
Title: Add new 'engine' option of Casperjs

A new options has been introduced in casper 1.1.
See http://docs.casperjs.org/en/latest/cli.html#casperjs-native-options

Casper can run over Slimerjs instead of Phantomjs, a headless browser builds on top of Gecko
See http://slimerjs.org/