Register new user update.

Register user update. Transitio still missing
Here you just need to call the trigger in order for the components listening to get that the request was successful, you should actually return something that'll let the component if there was a validation issue, as a reference the response for a repeated email is as follows:
![2014-11-24_18h43_20](https://cloud.githubusercontent.com/assets/703220/5176135/dafb38ce-7409-11e4-96ca-c8da0f17811a.png)