_bug_catcher

MacOS 10.9 (MBP Late 2013)

When I use "meta c" / "meta v" combinations I have error alert about unknown _receive_input" error in <code>Listener.prototype._bug_catcher()</code>.

So I replaced  [line 141] 

```
return _receive_input(e, false);
```

by 

```
return this._receive_input(e, false);
```

 and it works now.
