Remove the why page.
Add a model and create migration for styles.
Rename products db table to parts. Add parts to seed file.
Rename code from products to parts. Correct pricing for parts in seed file. Update orders table.
Preorder page: add HTML and CSS for selecting style.
Create OrdersParts model and db migration. Modify some existing db schemas to enforce non-null.
Change database use from sqlite to postgres.
Stop git from tracking database.yml and add it to git ignore file.
Merge pull request #9 from jules27/preorder

Preorder