Cleaner UITableViewControllers

Don’t make the code more difficult than it needs to be

When Xcode generates a default UITableViewController, and it encourages everything to go into this single view controller. This can mean a large class that is difficult to maintain, and yet this is how production code is often shipped.

It is possible to separate out the dataSource from the view controller, and should be considered as an approach if the controller starts to get too large.