Additional named router and URL generator

[devntd]

Hi guys,
What I mean here is the integration of the route into the router name. It will help the code is in sync and easy to maintain.
Example: I just declare

router.get('/user', function(), {name: "user"})

At the template engine to use one helper, such as:

url('user') 
// print: '/user'

Then if you want to modify simple path we just fix one place was finished.
Thanks
--ntd--

[tunniclm]

There is some discussion similar to this in #2501

[sjanuary]

I think this is covered by #2739 and pillarjs/router#36