Allow someone to easily create database.
Add migration to create items table
Change the storage over to use the db.
Get add to work.

This allows us to get rid of a bunch of code.
Make sure you are returning Item objects and not hashes.

Hashes are the default from Sequel.
Put in database cleaner to keep our database clean between tests.
Configure database cleaner to keep the database clean.
Finding should return an Item object and not a hash.
Update the item doesn't need to find the item first.
All green...now we have persistent items in our app.
Ignore all of the capybara files from save_and_open_page