0.3.11

This release adds support for play-clj.net. Additionally, I am renaming run! to screen! to avoid conflict with the run! function coming in clojure 1.7. Nightmod brings all play-clj functions into the game's namespace, so I want to make sure that remains possible. Both of them work for now, so it's not yet a breaking change, but eventually run! will be removed so please change your code if you use it.