state sync, many changes:

* separated css/js/rule files to pak file (glorified zip) to reduce full rebuilds
* implemented build cache
* some frontend UI spiffing up

app/index.wsgi

@@ -10,7 +10,7 @@ import threading
 import flask
 from gevent.pywsgi import WSGIServer
 
-from pylocal import core, actions, dev, items, tick
+from pylocal import core, actions, dev, gamedata, items, tick
 
 sig_exit = threading.Event()