Added recipe for disabling an app

docs/source/recipes/how_to_disable_an_app.rst

@@ -1,6 +1,33 @@
-=====================
-How to disable an app
-=====================
+============================
+How to disable an app's URLs
+============================
 
-...
+Suppose you don't want to use Oscar's dashboard but use your own.  The way to do
+this is to modify the URLs config to exclude the URLs from the app in question.
 
+You need to use your own root 'application' instance which gives you control
+over the URLs structure.  So your root ``urls.py`` should have::
+
+    # urls.py
+    from myproject.app import application
+
+    urlpatterns = patterns('',
+        ...
+        (r'', include(application.urls)),
+    )
+
+where ``application`` is a subclass of ``oscar.app.Shop`` which overrides the 
+link to the dashboard app::
+
+    # myproject/app.py
+    from oscar.app import Shop
+    from oscar.core.application import Application
+
+    class MyShop(Shop):
+
+        # Override the core dashboard_app instance to use a blank application 
+        # instance.  This means no dashboard URLs are included.
+        dashboard_app = Application()
+
+The only remaining task is to ensure your templates don't reference any
+dashboard URLs.