Add a Moksha RootController.lookup method.
Add a Moksha RootController.lookup method.

This method is called by the MokshaMiddleware and it currently dispatches to
our WidgetBrowser when Moksha is being used as WSGI middleware in another
application.

lmacken/moksha,pombredanne/moksha,lmacken/moksha,mokshaproject/moksha,mokshaproject/moksha,pombredanne/moksha,mokshaproject/moksha,mokshaproject/moksha,ralphbean/moksha,lmacken/moksha,pombredanne/moksha,pombredanne/moksha,ralphbean/moksha,ralphbean/moksha