Rework of grants of distrubution rights

I finally got some time to look over the new license. I wanted to rework the grants of distribution rights sections. I tried to clarify what was already there. I also added some additional restrictions.

This ended up being a larger rewrite than I originally planned to do. It's a pretty big change, but I think it's going in a good direction. I'm not saying the final license should look Exactly Like This, but we can have a discussion about whether or not we want to use these ideas.