Move public APIs into their own folder

And start writing actual tests for them

api/router.js

@@ -0,0 +1,22 @@
+var createRenderer = require("../render/render")
+var createRouter = require("../router/router")
+var limiter = require("./limiter")
+
+module.exports = function($window, redraw) {
+	var renderer = createRenderer($window)
+	var router = createRouter($window)
+	var route = function(root, defaultRoute, routes) {
+		var replay = limiter($window, router.defineRoutes(routes, function(component, args) {
+			renderer.render(root, {tag: component, attrs: args})
+		}, function() {
+			router.setPath(defaultRoute)
+		}))
+		
+		renderer.setEventCallback(replay)
+		redraw.run = replay
+	}
+	route.link = router.link
+	route.prefix = router.setPrefix
+	
+	return route
+}