consider combining with <url-route>

Hello, I wrote [``](https://github.com/codemix/url-route) which does some pretty similar stuff to ``. It would be nice to combine them. The two libraries take some different approaches:
1. `` is focussed on conditionally displaying elements, so you can do something like this:

``` html

I will only be displayed when the page fragment is

#wat

```

Whereas `` is all about declaring routes and then emitting events. It would be possible to support a similar use case in ``:

``` html


```

``` js
document.addEventListener('route-changed', function (route) { });
// or
document.addEventListener('route:wat', function (route) { });
```
2. `` uses director.js whereas `` rolls its own with a syntax stolen from the Yii php framework.

``` html

```

vs

``` html


```

Personally I like ours better (of course :smile:) simply because afaik director.js does not support the definition of named patterns inline (e.g. specifying that `id` in the example above can only be an integer). It appears that director.js's approach is to declare those special cases ahead of time which I think is inconvenient here. Also i'm unsure whether director's approach works with real URLs (`pushState` etc), and not just fragment based ones, whereas this works with both. It's nice if you're already using director of course, but most apps probably aren't.

WDYT?