Do you have some simple examples of using your API to update an existing feed?

I had to modify Datapoint.java and switch around the "at" and "value" attributes in order to successfully my uploaded data to display. Below is the change that I made.

public JSONObject toJSONObject() throws JSONException {
JSONObject jo = new JSONObject();
jo.put("at", at);
jo.put("value",value);
return jo;
}

Although not hard to add manually, the libs are missing. Using maven would be an option for nice lib-management.

The class UserState used in User.java is not in the repository.