Adding tests for recover and mapTo, adding API for creating manifests from Java and doccing things

akka-actor/src/main/scala/akka/japi/JavaAPI.scala

@@ -119,3 +119,10 @@ object Option {
   implicit def java2ScalaOption[A](o: Option[A]): scala.Option[A] = o.asScala
   implicit def scala2JavaOption[A](o: scala.Option[A]): Option[A] = if (o.isDefined) some(o.get) else none
 }
+
+object util {
+  /**
+   * Given a Class returns a Scala Manifest of that Class
+   */
+  def manifest[T](clazz: Class[T]): Manifest[T] = Manifest.classType(clazz)
+}