Generate Reportback form

Admin-only form to allow easier development of Reportback Gallery and Review functionality.

Hardcodes the Reportback uid to the logged in user, because as is, once dployed to staging, this will send live Reportback Transactional emails.

![screen shot 2014-12-16 at 10 57 33 am](https://cloud.githubusercontent.com/assets/1236811/5456557/68b0b400-8512-11e4-8ebf-2cdfd5362c93.png)

A nice to have TODO: Allow setting the Review status automatically, e.g. `approved`, `promoted`.