playframework/Play20 — pull request #151 by julienrf (2012-02-28 22:38:53+00:00)
Title: Make the Assets controller specializable

Allows one to custom Assets controllers things such as follows:

```scala
object CustomAssets extends Controller with Assets {
abstract override def at(path: String, file: String): Action[AnyContent] = Action { implicit request =>
if (somethingDependingOnTheRequestOrTheSession) {
super.at(path, file)
} else {
NotFound
}
}
}
```

As requested [here](https://groups.google.com/d/topic/play-framework/BkdAM8DqT_I/discussion).