uberVU/mozaic — pull request #100 by skidding (2013-07-25 15:21:27+00:00)
Title: Keep track of all widgets subscribed to a channel

## Story

```gherkin
As a Mozaic developer
I want to be able to track all widget subscribed to a channel at any given time
So that debug easier the connection between widgets and channels
And how they are GCed
```

This gets us one tiny step closer to the Chrome dev extension @topliceanu was envisioning