title: Update url using router
body: <p>I have a router on my application now it respond as expected when I type in the url.  For exapmple if I type in www.example.com#search/groupa, I get the appropriate result back.  I have attempted in the search feature to call navigate to set the url so that a user could cut and paste that and send it to another user.  The issue is it doesnt work I get the following error when attempting to do so: "Uncaught TypeError: Object function (){return i.apply(this,arguments)} has no method 'navigate'" </p>
  
  <pre><code>IEG = new Backbone.Marionette.Application();
  
  IEG.addRegions({
  searchBox: '#searchBox',
  resultBox: '#resultBox',
  modalBox: '#modalBox',
  recipientBox: '#recipientBox',
  confirmBox: '#confirmToggleActive'
  });
  
  IEG.vent = _.extend({}, Backbone.Events);
  
  
  IEG.vent.on("default", function () {
  
  var SBV = new SearchBoxView();
  IEG.searchBox.show(SBV);
  IEG.searchColl = new GroupEntries();
  IEG.searchColl.fetch({
      data: {
          cmd: 0, //search groups
          searchStr: null //if null show all groups
      },
      success: function (data) {
          searchResults = new SearchResultsView({ collection: IEG.searchColl });
          IEG.resultBox.show(searchResults);
      }
  });
  });
  
  IEG.vent.on("searchGroups", function (searchStr) {
  IEG.Router.navigate("search" + searchStr);   // CALLING NAVIGATE HERE
  IEG.searchColl.fetch({
      data: {
          cmd: 0, //search groups
          searchStr: searchStr
      },
      success: function (data) {
          searchResults = new SearchResultsView({ collection: IEG.searchColl });
          IEG.resultBox.show(searchResults);
      }
  });
  });
  
  IEG.Router = Backbone.Router.extend({
  routes: {
      '': 'index',
      'search/:str': 'search',
      'edit/:grp': 'edit'
  },
  
  index: function () {
      IEG.vent.trigger("default");
  },
  
  search: function (str)
  {
      IEG.vent.trigger("searchGroups",str);
  }
  });
  
  $(document).ready(function () {
  
      IEG.start();
      new IEG.Router;
      Backbone.history.start();
  });
  </code></pre>