Chen reorder stop

https://trello.com/c/HDn6APsx/45-update-all-stop-orders-after-delete-a-stop

![update all stops order after delete a stop](https://cloud.githubusercontent.com/assets/3759510/5114158/3ec1a078-7004-11e4-970c-606f8a480e59.gif)


This will make a DB call for every stop (greater than the current stop). You don't need to fix it now, but there is a way to do this with a single DB call. Maybe spend a few minutes thinking about that, but don't worry too much about it.