Easier Styled Strings with BonMot

Working with NSAttributedStrings can be a bit cumbersome, and can present some challenges when you want to localize your strings. We can make things much easier to work with by leveraging the BonMot library, which provides a cleaner interface for styling strings, allows us to separate styling from the views and strings, and customize tags we can use to mix styles in the same string.

This is a companion discussion topic for the original entry at https://nsscreencast.com/episodes/479-layout-in-code-bon-mot