Create test fixtures
Break up events into rows based on day
Set day attribute on Event based on completed time
Use day attribute to sort rows and display date
Rename Interval to IntervalType
Create new Interval model
Add interval_type association to Interval; Set Interval#seconds before save
Create Interval#hours_and_minutes method
Create intervals after event save
Handle interval times that have single digit minutes
Set day before interval is saved
Add position attribute to event types
Use the position attribute of event types to sort columns of the EventsController#index table
Add position attribute to IntervalType and use a hash to display intervals similarly to events