=con #15613 Rename one of the DistributedPubSubMediatorSpec classes
=doc Fix typo in scala remoting.rst
Merge pull request #15630 from savulchik/patch-1

Fix typo in scala remoting.rst
+con #13737 Interceptors chain for Actors' bahavior.

* Add new pattern to akka-contrib.
* Mixin ReceivePipeline trait into Actors that have to be intercepted.
Merge pull request #15629 from akka/wip-15613-rename-DistributedPubSubMediatorSpec-patriknw

=con #15613 Rename one of the DistributedPubSubMediatorSpec classes
Merge pull request #1869 from ktonga/wip-3737-interceptors-chain-for-receive-ktonga

#3737 Interceptors chain for receive