Orphan form

Remaining tasks in PT story: https://www.pivotaltracker.com/story/show/76239618

- Orphan index and show views.
- Orphan Status model.
- Orphan edit form.
- Orphan views features.
@NikitaAvvakumov ERD is wrong, check the model and schema.

https://github.com/AgileVentures/osra/blob/develop/app/models/address.rb#L7