=doc #15772 Make IPv6 multicast tests work on OS X

* Fixed a small race by waiting for the listenert to be bound
* Changed the Java test to test the Java code (imported the wrong class)
* Changed to a known link local multicas address (the old one just gave me a nop route to host)
remove old scalaBinaryVersion workaround
=act #15033 Added test to verify tcp connection actor termination
=pro #13928 Run multi-jvm tests in samples in normal test target

* fix scalariform formatting in MutiNode
=tes #15808 force the locale in pretty duration, its only a helper
Merge pull request #15810 from ktoso/fix-pretty-formatting-locale-ktoso

=tes #15808 force the locale in pretty duration, its only a helper
=act Make SerializationCompatibilitySpec pass on Scala 2.11.x

* The serailization format of Option has changed between Scala 2.10.x and 2.11.x
Merge pull request #15780 from akka/wip-13928-multi-jvm-samples-patriknw

=pro #13928 Run multi-jvm tests in samples in normal test target
=doc #15336 run contrib preprocessing after regular preprocess
Merge pull request #15815 from akka/wip-15807-make-SerializationCompatibilitySpec-pass-on-scala-2.11.x-master-ban

(Validation Only) =act Make SerializationCompatibilitySpec pass on Scala 2.11.x
Merge pull request #15812 from akka/wip-15033-tcp-connection-shutdown-master-ban

(Validation Only) =act #15033 Added test to verify tcp connection actor termination
Merge pull request #15785 from akka/wip-15772-ipv6-udp-multicast-ban

=doc #15772 Make IPv6 multicast tests work on OS X
Merge pull request #15818 from 2m/wip-sphinx-preprocess-order

=doc #15336 run contrib preprocessing after regular preprocess
=doc #15241 ClusterRouterGroup uses actor selection, remove warning
=act,clu,rem #15828 Turkish I bug

Conflicts:
	akka-cluster/src/main/scala/akka/cluster/ClusterSettings.scala
Merge pull request #15831 from ktoso/port-clusterroutergroup-docs-ktoso

=doc #15241 ClusterRouterGroup uses actor selection (for Validation)
Merge pull request #15832 from ktoso/port-15828-turkishbug-rkuhn

=act,clu,rem #15828 Turkish I bug (for Validation)
=doc#15830 fixed the mismatch between akka-docs and akka API
Merge pull request #15836 from PiyushMishra/PiyushMishra#15830-there-is-mismatch-between-akka-docs-and-akka-API

#15830 fix the mismatch between akka-docs and akka API
=rem #15843 rename package of QuietReporter
Resolves #15843