-Fixed session-related bugs.
-Each player now joins the game they want and is tracked via session cookies
-Added drakma and a first stab at publish-move (this may make more sense as a bang method, given that it'll only be acting on games, and it'll be recording history)
-Final version of publish!
-Still need to thread it through the relevant define-handler forms
-Moveable stacks and related UI tweaks
-The front-end now does the proper game-join thing rather than assuming one global game
-As yet untested, but fully implemented, publish! method
-Mild re-factoring of the publish! function
-Added nginx config file, including push-stream-server settings
-Renamed push-stream-server variable (it's just the URI, and the new name reflects that)
-Condensed the three server reflection handlers into `server-info`
-Tweaked the EV template in nginx-deal, and added the conf modeline
-Added slugs for client-side handling of the SSE events we'll be broadcasting (just logging for now)
-onmessage now calls those event handlers rather than logging naively