Webjars-play only supports the `Assets.at` route (located in the [nastyReflection](http://www.parleys.com/channel/53a7d269e4b0543940d9e535/presentations?sort=views&state=public)). If I have an assets route like this ``` scala GET /assets/file controllers.Assets.versioned(path="public", file: Asset) ``` Results in an `InvocationTargetException`, because the `at` method is not there.