title: Providing a default layout for views within a namespace
body: <p>I have a series of controllers and associated views within my app that exist inside the <code>Admin</code> namespace. I want these views to use a different layout than those in the main namespace so I can give them a different appearance to the regular site. Is there a way I can do this using Rails' built in functionality? I know that if I have a <code>PostController</code> class and create a <code>posts.html.erb</code> view in the layouts directory this will be used as the layout for any of the controller's views, is there something similar I can do for namespaced controllers?</p>