Accept flags in initialization.

Go.elm

@@ -46,4 +46,4 @@ subscriptions : Model -> Sub Msg
 subscriptions m = 
     WebSocket.listen m.sessionUrl Update
 
-main = Html.program { init = initDummy, update = update, subscriptions = subscriptions, view = view }
+main = Html.programWithFlags { init = init, update = update, subscriptions = subscriptions, view = view }