HoTT/HoTT — pull request #585 by mikeshulman (2014-10-21 05:56:15+00:00)
Title: Use records, not typeclasses, for subuniverses and modalities

I have been working and thinking about these a lot and I've decided that my original idea of using typeclasses was probably not the best way: when there is more than one modality floating around then it's really better to be passing them explicitly. This PR turns reflective subuniverses and modalities back into records.