Moving forward cleaning up some unnecessary lesson super classes which we

do not need to support anymore in 8.0:

- Introduced DI thoughout the code base
- Removed most superclasses of a lesson
- Hammerhead is now simplified to only one line of code
- Cleaned up WebSession
- Removed code which dealt with user roles, lesson fetching, username etc
- LessonTracker improvements
- Removed almost all code from the Screen class
- Removed ECS from the container project
- Removed adminstration pages, contained a lot of ECS codes which is much
  simpler to just rewrite when necessary

webgoat-container/src/main/resources/static/js/goatApp/model/HTMLContentModel.js

@@ -3,7 +3,6 @@ define(['jquery',
 	'backbone'],
 	function($,_,Backbone) {
 	return Backbone.Model.extend({
-		//url:'service/lessonplan.mvc',
 		fetch: function (options) {
 			options = options || {};
 			return Backbone.Model.prototype.fetch.call(this, _.extend({ dataType: "html"}, options));