Merge pull request #25 from QuillyT/fix-seed-file

fix seed file
Add email notifications when restaurants are requested
Merge pull request #26 from QuillyT/email-notification

Add email notifications when restaurants are requested
Add relationships between restaurants, categories, and orders
Add current_restaurant helper, feature still WIP
Scoped the routes and controllers for checkout, thank you, and cart
Merge pull request #27 from QuillyT/connect-restaurants-and-categories

Connect restaurants and categories
Update seed file, add approve and reject methods to restaurant model