Yes it's an osx setup but I thought we spoke about this previously where we agreed it's fine to add/comment out environments for running local tests? Though I agree IE should be in there and commented out when necessary (will add later). The master/remote environment setup is what's important for a full functional suite and that should be the same across delite/deliteful and I guess this needs updated to match https://github.com/ibm-js/delite/issues/118

The grunt task could be updated where we can pass in flags for optional browsers but it feels unnecessary?