This is the exercise for part 2 of book "AngularJS: Maintaining Web Applications(2016)" , see also https://github.com/uniquejava/so_angular
WebStorm 2016.2.1, OSX 10.11.6, Angular 1.5.8
Each folder under js is a feature, we now only have one feature named 7MinWorkout. A feature may have multiple pages and each page will have a controller.
A workout is a set of exercises performed in a specific order for a particular duration.
Model类Exercise和WorkoutPlan放在controller里边..