Isomorphic Routing Helpers

Provides middleware to be used agnostically with either page.js, or with express (through middleware adapters found in server/). Since some of the middleware needs to function differently on the server than on the client, both versions are provided transparently in those cases (by index.web.js and index.node.js, respectively.)

These middlewares include:

makeLayout: creates a Layout (or LayoutLoggedOut) component in context.layout. Accepts primary and secondary arguments which it will use to populate the corresponding <div>s.
clientRouter: Essentially an alias for page, which invokes a client-side render middleware after all other middlewares.