NYTimes/backbone.trackit — pull request #18 by kiRach (2014-11-21 11:58:34+00:00)
Title: Reset tracking before calling callback on model in save method

Model tracking should be reset before calling old `success` callback during save method. For now, this example from documentation doesn't work:
```javascript
model.save({}, {
success: function() {
console.log(model.unsavedAttributes()); // >> false
}
});
```
because we call success and then reset tracking. This PR solve this problem.

Thanks.