[WIP]: Adds breaking test for paths

My assumption is that this example should work:

Given this model:
```javascript
var model = {
        host: { url: 'example.com' },
        path: { name: 'hello' }
};
```
And this template:
```htmlbars
<a href="http://{{host.url}}/{{path.name}}/">hello</a>
```
Expected output:
```html
<a href="http://example.com/hello">hello</a>
```