Upgraded routing documentation to Akka 2.0. See #1063

akka-docs/scala/code/akka/docs/routing/CapacityStrategyExample.scala

@@ -0,0 +1,16 @@
+package akka.docs.routing
+
+import akka.routing.ActorPool
+import akka.actor.ActorRef
+
+//#capacityStrategy
+trait CapacityStrategy {
+  import ActorPool._
+
+  def pressure(delegates: Seq[ActorRef]): Int
+  def filter(pressure: Int, capacity: Int): Int
+
+  protected def _eval(delegates: Seq[ActorRef]): Int =
+    filter(pressure(delegates), delegates.size)
+}
+//#capacityStrategy