This hooks up the remaining bits of the UI on the review request page to

the richText settings. Banners, review request fields, and replies all

now properly load and save properly based on the richText settings.
Most of this is just passing in richText values around, or converting

them to text type values. There are also unit tests to check that the

proper values make it out to the API.

Unit tests pass.
Tested saving the various fields and checking the results in the API and

database.