Session's dtmf event is incorrectly documented

[Rob--W]

http://sipjs.com/api/0.6.0/session/#dtmf

.on('dtmf', function(dtmf, request) {})

Source code:

Session/DTMF.js:  this.owner.emit('dtmf', this.request, this);
Session/DTMF.js:    this.owner.emit('dtmf', request, this);

I think that the code is correct and the documentation is wrong, because putting the request/response first seems to be the convention in your library.

[josephfrazier]

Good call! As you can see, we haven't quite gotten all of the documentation updated with the changes between 0.5.0 and 0.6.0 yet. Let us know if you spot any more inconsistencies.