client: refactor linking and routing

Print all links through new uri.js component
Refactor the router to use more predictable parsing
Fix linking to entities with weird names (that contain slashes, + etc.)

client/js/controllers/home_controller.js

@@ -44,7 +44,7 @@ class HomeController {
 };
 
 module.exports = router => {
-    router.enter('/', (ctx, next) => {
+    router.enter([], (ctx, next) => {
         ctx.controller = new HomeController();
     });
 };