Add domain subscription view

- also some user-facing translatable text
- this is behind a feature toggle accounting_preview

it looks like this:
![screen shot 2014-01-16 at 2 51 16 pm](https://f.cloud.github.com/assets/716573/1934236/9a59eaa8-7ee7-11e3-88b9-56c7cb1c77c6.png)