text: define([
      'backbone'
  ], function (Backbone) {
  
      var BaseCollection = Backbone.Collection.extend({
  
          url: function () {
              var origUrl = Backbone.Collection.prototype.url.call(this);
              return origUrl + (origUrl.charAt(origUrl.length - 1) == '/' ? '' : '/');
          }
  
      });
  
      return BaseCollection;
  });
  