Hello world for server-side routing.
Made no progress on RSS, but made a lot of changes.

Getting the following error message after swapping out XML in router.js:
ReferenceError: RSS is not defined
    at Object.Meteor.Router.add./feed.xml (app/server/router.js:3:20)
    at Router.match (packages/router/lib/router_server.js:61)
    at packages/router/lib/router_server.js:95