Incremental implementation to get the `listen` function working.

routes.coffee

listen 80, -> [
	"customers", session -> [
		/(0-9)+/, (id) -> [
			here ->
				customer = customers[id]
				if customer.isPrivate and @session.user.id isnt customer.id
					throw new @error[401] "This customer doesn't want you to peek into his details"

				@return -> status: 200, body: serialize.toJson customer
		]
	]
	"products", session -> [
		/(0-9)+/, (id) ->

	]
	session.management url: "session", assign: "session"
	@catch @error[404], (error) ->
		# handle error gracefully
]