migrations: Create customer table
migrations: Create merchant table
migrations: Remove the name and merchant-related columns from CustomerOrders
migrations: Add customer and merchant IDs to CustomerOrders
migrations: Rename CustomerOrders to Orders
models: Create Customer model
models: Add merchant model
models: Add relationships and validators to CustomerOrder
models: Rename CustomerOrder to Order
models: Change relationships from CustomerOrders to Orders
rspec: Move customer_order spec to order spec
rspec: Change CustomerOrder to Order
rspec: Move the customer_orders factory to the orders factory
rspec: Update CustomerOrder factory to be Order
rspec: Fix specs to work with the new model structure
rspec: Add tests for validators
db: Update schema