This weekend I finally got around to implementing API over WebSocket support. This means that you can get 10%-20% (average, but in some cases much more) performance improvement when using the server-side APIs.
It will be merged into 'master' soon, but as for now all the changes are in another branch.. These changes are now in master
To enable this feature simply do:
$ npm install ws
$ grunt config --set=connection --value=ws
$ grunt config
Remember to restart both the server and client to make changes take effect.