discuss: use ternary in ng-class

this would make the demo different from the exercise
rating: add watching of maxRating
paginator: simplify, simplify, simplify
paginator: fix off by one error in original paginator
fix typos
prefix controller - btw why not inline it? I think that would be better than exposing it as a regular controller
pagination enhancements
button checkbox: crazy rewrite.. how about doing it this way
paginator: adjust to match rating
rating: style changes
remove replace:true
rating: starting point for exercise