More wonderful integration!
* Added a "Sender" page to change who the email is from
* Added a "Persona" object that represents your persona, including permissions
* Added checking for authentication and authorization
* Modified all of the spaminator wrapper views to include support for the persona
* Better reporting on why the "next" button is grayed out - now has a Bootstrap Popover containing what you haven't done yet
* The Review page now shows what you have selected, more or less