ronaldlokers/grunt-casperjs — pull request #32 by theefer (2013-10-02 13:19:25+00:00)
Title: Pipe through casperjs stdout/stderr 

Use spawn instead of exec to allow piping stdout/stderr, rather than buffering them. This allows seeing the progress of a running casperjs test, rather than having to wait for it to complete (successfully or failing) to see the output.