Merge pull request #439 from dwabyick/gh-pages

Changed window.app.* to app.* to match the example code in Example 1

chapters/04-exercise-1.md

@@ -574,13 +574,13 @@ If you are following along, open `file://*path*/index.html` in your browser and
 
 However, a few things can be tested through the JavaScript console.
 
-In the console, add a new todo item: `window.app.Todos.create({ title: 'My first Todo item'});` and hit return.
+In the console, add a new todo item: `app.Todos.create({ title: 'My first Todo item'});` and hit return.
 
 ![](img/todos_d.png)
 
 If all is functioning properly, this should log the new todo we've just added to the todos collection. The newly created todo is also saved to Local Storage and will be available on page refresh.
 
-`window.app.Todos.create()` executes a collection method (`Collection.create(attributes, [options])`) which instantiates a new model item of the type passed into the collection definition, in our case `app.Todo`:
+`app.Todos.create()` executes a collection method (`Collection.create(attributes, [options])`) which instantiates a new model item of the type passed into the collection definition, in our case `app.Todo`:
 
 ```javascript
 
@@ -597,7 +597,7 @@ If all is functioning properly, this should log the new todo we've just added to
 Run the following in the console to check it out:
 
 ```javascript
-var secondTodo = window.app.Todos.create({ title: 'My second Todo item'});
+var secondTodo = app.Todos.create({ title: 'My second Todo item'});
 secondTodo instanceof app.Todo // returns true
 ```
 
@@ -780,9 +780,9 @@ When the route changes, the todo list will be filtered on a model level and the
 
 ```
 
-Our router uses a *splat to set up a default route which passes the string after '#/' in the URL to `setFilter()` which sets `window.app.TodoFilter` to that string.
+Our router uses a *splat to set up a default route which passes the string after '#/' in the URL to `setFilter()` which sets `app.TodoFilter` to that string.
 
-As we can see in the line `window.app.Todos.trigger('filter')`, once the filter has been set, we simply trigger 'filter' on our Todos collection to toggle which items are visible and which are hidden. Recall that our AppView's `filterAll()` method is bound to the collection's filter event and that any event on the collection will cause the AppView to re-render.
+As we can see in the line `app.Todos.trigger('filter')`, once the filter has been set, we simply trigger 'filter' on our Todos collection to toggle which items are visible and which are hidden. Recall that our AppView's `filterAll()` method is bound to the collection's filter event and that any event on the collection will cause the AppView to re-render.
 
 Finally, we create an instance of our router and call `Backbone.history.start()` to route the initial URL during page load.