implemented the marionaitte and moved the logic of transition between views
to the application object of marionette and used event aggregator logic
implemented the i18n to the application
cleaned up the app build js
locale for quiz in help has been added
css adjusted
fixed the issue of the event aggregator not used in timer
integrated with node and updated the timer
changed the name from "destroy" to "close" method, Since the region manager
calls the close method of current view, before updating the region with new
view or calling the close method of the view