0.10 streaming state documentation out of date

[Martin Neumann]

Hej,

I'm working with some state full streaming operators at the moment and I
noticed that the Documentation is out of date.

The documentation says:

 @Override
    public void open(Configuration config) {
        counter = getRuntimeContext().getOperatorState(“counter”, 0L, false);
    }


getOperatorState does not exist anymore, instead it should be getKeyValueState.
Also the signature of the function has changed so the description text
might need some update to.

cheers Martin