Fixed initial condition in StartWorkoutCtrl;
Removed webapp meta tags in index because things aren't working;
Added groups to rootscope on init
New format for exercises to be loaded via JSON--more data for more visualization
Moved webStorage module and page transition dealings to a service
Added removeExercise for exercise view;
Global scope not parses previously saved workout from localstorage instead of just a string
Moved async data grab for exercises to service and resolve promise before render
Added caching to exercise data request