investigate using an app per route

[joefitter]

Currently an application has one express app instance which uses a router for each route. The downside with this approach is app.set('views') is set on the global app so every route shares the same views (and partials if using express-partial-templates).

If we create a new express app instance for each route, and pass in the global express app instance, we should be able to concatenate the global app views with the route views, and call express-partial-templates passing the child app.

This would result in each route having its own res.locals.partials, which are a superset of the base app partials