Added 'withRouter[TYPE]' to 'Props'.

Added docs (Scala and Java) and (code for the docs) for 'Props'.
Renamed UntypedActorTestBase to UntypedActorDocTestBase.

Signed-off-by: Jonas Bonér <jonas@jonasboner.com>

akka-docs/java/code/akka/docs/actor/UntypedActorDocTest.scala

@@ -0,0 +1,5 @@
+package akka.docs.actor
+
+import org.scalatest.junit.JUnitSuite
+
+class UntypedActorDocTest extends UntypedActorDocTestBase with JUnitSuite

akka-docs/java/code/akka/docs/actor/UntypedActorDocTestBase.java

@@ -1,5 +1,7 @@
 package akka.docs.actor;
 
+import akka.actor.Timeout;
+
 //#imports
 import akka.actor.ActorRef;
 import akka.actor.ActorSystem;
@@ -33,7 +35,26 @@ import scala.Option;
 
 import static org.junit.Assert.*;
 
-public class UntypedActorTestBase {
+public class UntypedActorDocTestBase {
+
+  @Test
+  public void createProps() {
+    //#creating-props-config
+    Props props1 = new Props();
+    Props props2 = new Props(MyUntypedActor.class);
+    Props props3 = new Props(new UntypedActorFactory() {
+      public UntypedActor create() {
+        return new MyUntypedActor();
+      }
+    });
+    Props props4 = props1.withCreator(new UntypedActorFactory() {
+      public UntypedActor create() {
+        return new MyUntypedActor();
+      }
+    });
+    Props props5 = props4.withTimeout(new Timeout(1000));
+    //#creating-props-config
+  }
 
   @Test
   public void systemActorOf() {

akka-docs/java/code/akka/docs/actor/UntypedActorTest.scala

@@ -1,5 +0,0 @@
-package akka.docs.actor
-
-import org.scalatest.junit.JUnitSuite
-
-class UntypedActorTest extends UntypedActorTestBase with JUnitSuite