Modify delegate methods on DataSource? #78

Framework is a strong piece of work, thanks for sharing it! One of those things I wish was built into iOS itself.

Have a usage question for you all (that might end up just being a Swift question, but still!) - is there a way to add or modify the UITableViewDelegate methods on DataSource? (https://github.com/venmo/Static/blob/master/Static/DataSource.swift#L260).

For example, I'd like to be able to use tableView:willDisplayHeaderView:forSection:, but I don't see an easy way of hooking into that delegate declared in DataSource.

Tried subclassing DataSource, but then I get the Redudant conformance... error. I could fork the repo, or use a different data source entirely, but those solutions are much 'heavier'; it feels like there must be a better way that I'm missing.

Thanks!