Scala 2.10 and Akka 2.0 and 2.1 import problems (Await, Future, Duration)

As a quick note, import statements that used to be like this with Akka 2.0:

import akka.dispatch.Await
import akka.dispatch.Future
import akka.util.duration._

are now like this with Akka 2.1 and Scala 2.10.x:

import scala.concurrent.{Await, Future}
import scala.concurrent.duration._

The Duration object in Akka 2.0 has also been moved, and it’s now included with the scala.concurrent.duration._ import statement.

String interpolation in Scala 2.10 and newer (String variable substitution)

Scala string FAQ: How do I embed variables in strings in Scala?

A lot of nice new features were added in Scala in version 2.10, but a simple feature that makes me happy is string interpolation. This lets Scala developers embed variables inside strings just like you can do in other languages like Perl, PHP, and Ruby -- but perhaps in an even more powerful way. (I say "perhaps" because I haven't used those other languages recently.)