OSGi Make the integration test work again. See #3292

OSGi Adding ScalaBuff and removing experimental from cluster. See #3292
OSGi create bundle for ScalaBuff. See #3292
OSGi Make the integration test work again. See #3292
make LocalScope mean “purely local” and avoid Props serialization check, see #3210
Make AkkaSpec getCallerName work on J9. See #2996
remove unused pom.xml with akka-cluster-experimental ref
Merge pull request #1503 from akka/wip-3292-osgi-integration-test-ban

OSGi Make the integration test work again #3292
Merge pull request #1504 from akka/wip-2996-make-test-work-on-j9-ban

Make AkkaSpec getCallerName work on J9 #2996
Add a barrier in RemoteNodeDeathWatchSpec to compensate for connection time. See #3390
only create the routees once they can be looked-up, see #3406

- move the creation of the RoutedActorCell’s route into
  ActorCell.start(); it used to be done in the constructor
- this requires “val route” to turn into a volatile private var

Thanks to Patrik for finding it!
adapt SchedulerSpec rate test to 10ms time slices, see #3391

using a larger sample will also make the spread of the resulting
calculated rate smaller; the referenced ticket is about a deviation from
the target rate which was slightly out of bounds
Merge pull request #1506 from akka/wip-3390-remotenodedeathwatch-failure-ban

Add a barrier in RemoteNodeDeathWatchSpec to compensate for connection time #3390
Make the SslTlsSupportSpec AkkaSslHandler stop on all types of close. See #3407
Merge pull request #1505 from akka/wip-another-cluster-experimental-patriknw

remove unused pom.xml with akka-cluster-experimental ref
Wrap long lines, for pdf
Change workSchedule time to avoid SupervisorHierarchySpec running slow. See #3312

The analysis has shown the following:

* when it happens, no work is outstanding, the supervisor hierarchy is in a quiet state
* test completes normally in 20s, one observed outlier at 33s and two failures which can be extrapolated to 75s and 59s
* timings can be reproduced on a notebook by inserting Thread.slee(p) in Hierarchy.preRestart
* what happens then is that the FSM backs off (with 250ms timer), bursts work, backs off, etc.
* setting the back-off timeout to 50ms reduces runtime from 50s to 20s on the notebook

Preliminary conclusion is that this is an artifact of the test procedure. No indication was seen of corruption or indefinitely suspending actor or any other incorrect behavior.
Merge pull request #1501 from akka/wip-long-lines-patriknw

Wrap long lines, for pdf
harmonize MyActor.props pattern, see #3418
Merge pull request #1509 from akka/wip-3407-ssltlssupportspec-failure-ban

Make the SslTlsSupportSpec AkkaSslHandler stop on all types of close #3407
Merge pull request #1510 from akka/wip-3312-supervisorhierarchyspec-takes-too-long-ban

Change workSchedule time to avoid SupervisorHierarchySpec running slow #3312
Merge pull request #1500 from akka/wip-3210-local-only-∂π

make LocalScope mean “purely local” and avoid Props serialization check,...
Merge pull request #1507 from akka/wip-3406-routee-start-∂π

only create the routees once they can be looked-up, see #3406