Finish up the updated registration flow
Finish up the updated registration flow

[Finishes: #135734277](https://www.pivotaltracker.com/story/show/135734277)
[Finishes: #135733401](https://www.pivotaltracker.com/story/show/135733401)
[Finishes: #135733441](https://www.pivotaltracker.com/story/show/135733441)
[Finishes: #135733487](https://www.pivotaltracker.com/story/show/135733487)

ello/webapp,ello/webapp,ello/webapp