Merging in master, huge work trying to get things to compile, tests not green at this stage

akka-docs/java/code/docs/actor/japi/FaultHandlingDocSample.java

@@ -151,7 +151,7 @@ public class FaultHandlingDocSample {
             public Progress apply(CurrentCount c) {
                 return new Progress(100.0 * c.count / totalCount);
             }
-        }))
+        }, getContext().dispatcher()))
         .to(progressListener);
       } else {
         unhandled(msg);