Add railroady
Create User model, associate user with one stop
Remove User model as it is not really needed; for some reason, the db gets overwritten when I try to add new tables; if User is created in the sql file as a dummy table (without data) it doesn't work either -- new records aren't persisted to the db
Next departing train and time til next train are working again -- need to write tests for all this stuff
Change next train methods so that they also take a direction input -- keep in mind that stops are direction specific