Feature/settings

feature/settings allows the admin to manage settings containing the copyright information, contact email, and about page text. Admin can add, edit, and delete this information from the admin index path.
Ah, this is kind of odd. This means there's a row that contains all setting info for the application. What I'd prefer is if there was a table with a setting_name column and a value column. That way there'd be a row per setting. This means you have to do some trickery to get the form to show up nicely, but that's fine.