r7kamura/kamo.js — pull request #1 by francescoagati (2014-08-18 21:52:50+00:00)
Title: add support for stream end

Hi,
this patch add support for ending stream.
publishing kamo.End the subscriber is executed and after deleted from stream subscriptions.

```
var stream = new kamo.Stream();
var log = function(value) {
console.log(value);
};

stream.subscribe(log);
stream.subscribe(log);
stream.subscribe(log);
stream.publish("ciao");

stream.publish(kamo.End);
//this last subscriber isn't executed
stream.publish("ciao2");
```